Is Tutor LMS safe? Known vulnerabilities and latest version

Unauthenticated Broken Access Control in Tutor LMS <= 3.9.7 versions.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 3.9.9. This is due to the `get_course_id_by()` function unconditionally trusting the user-supplied `course` GET parameter as the authoritative course ID for content ownership lookups, which is then consumed by `can_user_manage()`, the plugin's sole authorization gate for instructor-level operations, causing it to evaluate instructor membership against the attacker-controlled course rather than the course that actually owns the target content object. This makes it possible for authenticated attackers, with instructor-level access and above, to perform unauthorized operations on any other instructor's course content, including permanently deleting lessons, assignments, quizzes (with cascading deletion of all student attempt data), topics, announcements, and Q&A threads, as well as creating or modifying lessons, topics, and announcements in victim courses, manipulating student quiz grades, and reading unpublished lesson and quiz content.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized course content manipulation in versions up to and including 3.9.8. This is due to a missing authorization check in the tutor_update_course_content_order() function. The function only validates the nonce (CSRF protection) but does not verify whether the user has permission to manage course content. The can_user_manage() authorization check only executes when the 'content_parent' parameter is present in the request. When this parameter is omitted, the function proceeds directly to save_course_content_order() which manipulates the wp_posts table without any authorization validation. This makes it possible for authenticated attackers with subscriber-level access and above to detach all lessons from any topic, move lessons between topics, and modify the menu_order of course content, effectively allowing them to disrupt the structure of any course on the site.

The Tutor LMS plugin for WordPress is vulnerable to SQL Injection in versions up to and including 3.9.8. This is due to insufficient escaping on the 'date' parameter combined with direct interpolation into a SQL fragment before being passed to $wpdb->prepare(). This makes it possible for authenticated attackers with Admin-level access and above to append additional SQL queries and extract sensitive information from the database.

Missing Authorization vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.7.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized private course enrollment in all versions up to, and including, 3.9.7. This is due to missing post_status validation in the `enroll_now()` and `course_enrollment()` functions. Both enrollment endpoints verify the nonce, user authentication, and whether the course is purchasable, but fail to check if the course has a `private` post_status. This makes it possible for authenticated attackers with Subscriber-level access or above to enroll in private courses by sending a crafted POST request with the target course ID. The enrollment record is created in the database and the private course title and enrollment status are exposed in the subscriber's dashboard, though WordPress core access control prevents the subscriber from viewing the actual course content (returns 404). Enrollment in private courses should be restricted to users with the `read_private_posts` capability.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authorization checks in the `save_course_content_order()` private method, which is called unconditionally by the `tutor_update_course_content_order` AJAX handler. While the handler's `content_parent` branch includes a `can_user_manage()` check, the `save_course_content_order()` call processes attacker-supplied `tutor_topics_lessons_sorting` JSON without any ownership or capability verification. This makes it possible for authenticated attackers with Subscriber-level access or above to detach lessons from topics, reorder course content, and reassign lessons between topics in any course, including admin-owned courses, by sending a crafted AJAX request with manipulated topic and lesson IDs.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to an Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authentication and authorization checks in the `pay_incomplete_order()` function. The function accepts an attacker-controlled `order_id` parameter and uses it to look up order data, then writes billing fields to the order owner's profile (`$order_data->user_id`) without verifying the requester's identity or ownership. Because the Tutor nonce (`_tutor_nonce`) is exposed on public frontend pages, this makes it possible for unauthenticated attackers to overwrite the billing profile (name, email, phone, address) of any user who has an incomplete manual order, by sending a crafted POST request with a guessed or enumerated `order_id`.

Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.4.

Missing Authorization vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.5.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to SQL Injection via the 'coupon_code' parameter in all versions up to, and including, 3.9.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. NOTE: This vulnerability was partially mitigated in versions 3.9.4 and 3.9.6.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.9.5. This is due to missing authorization checks in the `ajax_coupon_details()` function, which only validates nonces but does not verify user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve sensitive coupon information including coupon codes, discount amounts, usage statistics, and course/bundle applications.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object References (IDOR) in all versions up to, and including, 3.9.5. This is due to missing object-level authorization checks in the `course_list_bulk_action()`, `bulk_delete_course()`, and `update_course_status()` functions. This makes it possible for authenticated attackers, with Tutor Instructor-level access and above, to modify or delete arbitrary courses they do not own by manipulating course IDs in bulk action requests.

Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.4.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized attachment deletion due to a missing capability check on the `delete_existing_user_photo` function in all versions up to, and including, 3.9.4. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary attachments on the site.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized course enrollment in all versions up to, and including, 3.9.3. This is due to a missing capability check and purchasability validation in the `course_enrollment()` AJAX handler. This makes it possible for authenticated attackers, with subscriber level access and above, to enroll themselves in any course without going through the proper purchase flow.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized course completion in all versions up to, and including, 3.9.2. This is due to missing enrollment verification in the 'mark_course_complete' function. This makes it possible for authenticated attackers, with subscriber level access and above, to mark any course as completed.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification and deletion of data due to a missing capability check on the 'bulk_action_handler' and 'coupon_permanent_delete' functions in all versions up to, and including, 3.9.3. This makes it possible for authenticated attackers, with subscriber level access and above, to delete, activate, deactivate, or trash arbitrary coupons.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_order_by_id() function in all versions up to, and including, 3.9.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to enumerate order IDs and exfiltrate sensitive data (PII), such as student name, email address, phone number, and billing address.

The Tutor LMS Pro – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.8.3 due to missing validation on a user controlled key when viewing and editing assignments through the tutor_assignment_submit() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to view and edit assignment submissions of other students.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.8.3. This makes it possible for authenticated attackers, with tutor-level access and above, to view assignments for courses they don't teach which may contain sensitive information.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check while verifying webhook signatures on the "verifyAndCreateOrderData" function in all versions up to, and including, 3.8.3. This makes it possible for unauthenticated attackers to bypass payment verification and mark orders as paid by submitting forged webhook requests with `payment_type` set to 'recurring'.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS tutor allows SQL Injection.This issue affects Tutor LMS: from n/a through <= 3.7.4.

The Tutor LMS Pro – eLearning and online course solution plugin for WordPress is vulnerable to time-based SQL Injection via the ‘order’ parameter used in the get_submitted_assignments() function in all versions up to, and including, 3.7.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Tutor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Only the Pro version is affected.

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Themeum Tutor LMS tutor.This issue affects Tutor LMS: from n/a through <= 3.4.0.

The Tutor LMS plugin for WordPress is vulnerable to bypass to user registration in versions up to, and including, 2.7.6. This is due to a missing check for the 'users_can_register' option in the 'register_instructor' function. This makes it possible for unauthenticated attackers to register as the default role on the site, even if registration is disabled.

The Tutor LMS plugin for WordPress is vulnerable to SQL Injection via the ‘rating_filter’ parameter in all versions up to, and including, 2.7.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Missing Authorization vulnerability in Themeum Tutor LMS allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through 2.7.3.

The Tutor LMS plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.7.4. This is due to missing or incorrect nonce validation on the 'addon_enable_disable' function. This makes it possible for unauthenticated attackers to enable or disable addons via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Cross-Site Request Forgery (CSRF) vulnerability in Themeum Tutor LMS.This issue affects Tutor LMS: from n/a through 2.7.2.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS.This issue affects Tutor LMS: from n/a through 2.7.2.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Themeum Tutor LMS allows Stored XSS.This issue affects Tutor LMS: from n/a through 2.7.3.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Themeum Tutor LMS allows Stored XSS.This issue affects Tutor LMS: from n/a through 2.7.2.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Themeum Tutor LMS allows Path Traversal.This issue affects Tutor LMS: from n/a through 2.7.1.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS.This issue affects Tutor LMS: from n/a through 2.7.1.

Missing Authorization vulnerability in Themeum Tutor LMS.This issue affects Tutor LMS: from n/a through 2.1.8.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.7.1 via the 'attempt_delete' function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Instructor-level access and above, to delete arbitrary quiz attempts.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to time-based SQL Injection via the ‘course_id’ parameter in all versions up to, and including, 2.7.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with admin access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. CVE-2024-37256 is likely a duplicate of this issue.

The Tutor LMS plugin for WordPress is vulnerable to unauthorized access of data, modification of data, loss of data due to a missing capability check on multiple functions in all versions up to, and including, 2.7.0. This makes it possible for unauthenticated attackers to add, modify, or delete data.

The Tutor LMS plugin for WordPress is vulnerable to time-based SQL Injection via the ‘question_id’ parameter in versions up to, and including, 2.7.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Instructor-level permissions and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference to Arbitrary Course Deletion in versions up to, and including, 2.7.0 via the 'tutor_course_delete' function due to missing validation on a user controlled key. This can allow authenticated attackers, with Instructor-level permissions and above, to delete any course.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the hide_notices function in all versions up to, and including, 2.6.2. This makes it possible for unauthenticated attackers to enable user registration on sites that may have it disabled.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'tutor_instructor_list' shortcode in all versions up to, and including, 2.6.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the tutor_delete_announcement() function in all versions up to, and including, 2.6.1. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary posts.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.6.1. This is due to missing or incorrect nonce validation on the erase_tutor_data() function. This makes it possible for unauthenticated attackers to deactivate the plugin and erase all data via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This requires the "Erase upon uninstallation" option to be enabled.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to time-based SQL Injection via the question_id parameter in all versions up to, and including, 2.6.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber/student access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized access of restricted Q&A content due to a missing capability check when interacting with questions in all versions up to, and including, 2.6.0. This makes it possible for authenticated attackers, with subscriber access or higher, to interact with questions in courses in which they are not enrolled including private courses.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 2.6.0. This is due to insufficient sanitization of HTML input in the Q&A functionality. This makes it possible for authenticated attackers, with Student access and above, to inject arbitrary HTML onto a site, though it does not allow Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Themeum Tutor LMS – eLearning and online course solution allows Stored XSS.This issue affects Tutor LMS – eLearning and online course solution: from n/a through 2.2.4.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS allows SQL Injection.This issue affects Tutor LMS: from n/a through 2.1.10.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS allows SQL Injection.This issue affects Tutor LMS: from n/a through 2.2.0.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Themeum Tutor LMS allows SQL Injection.This issue affects Tutor LMS: from n/a through 2.1.10.

The Tutor LMS WordPress plugin before 2.3.0 does not sanitise and escape some of its settings, which could allow users such as subscriber to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

The Tutor LMS WordPress plugin before 2.2.1 does not implement adequate permission checks for REST API endpoints, allowing unauthenticated attackers to access information from Lessons that should not be publicly available.

The Tutor LMS WordPress plugin before 2.0.10 does not sanitise and escape the reset_key and user_id parameters before outputting then back in attributes, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The Tutor LMS WordPress plugin before 2.0.10 does not escape some course parameters, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

The Tutor LMS WordPress plugin before 1.9.12 does not escape the search parameter before outputting it back in an attribute in an admin page, leading to a Reflected Cross-Site Scripting

The Tutor LMS WordPress plugin before 1.9.11 does not sanitise and escape user input before outputting back in attributes in the Student Registration page, leading to a Reflected Cross-Site Scripting issue

The Tutor LMS WordPress plugin before 1.9.9 does not escape some of its settings before outputting them in attributes, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

The Tutor LMS – eLearning and online course solution WordPress plugin before 1.9.2 did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This lead to a Stored Cross-Site Scripting issue, which is triggered when viewing the Announcements list, and could result in privilege escalation when viewed by an admin.

The Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.8 is affected by a local file inclusion vulnerability through the maliciously constructed sub_page parameter of the plugin's Tools, allowing high privilege users to include any local php file

The tutor_mark_answer_as_correct AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could be exploited by students.

The tutor_quiz_builder_get_answers_by_question AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.

The tutor_quiz_builder_get_question_form AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.

Several AJAX endpoints in the Tutor LMS – eLearning and online course solution WordPress plugin before 1.7.7 were unprotected, allowing students to modify course information and elevate their privileges among many other actions.

The tutor_place_rating AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could be exploited by students.

The tutor_answering_quiz_question/get_answer_by_id function pair from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.