Is LearnPress safe? Known vulnerabilities and latest version

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThimPress LearnPress allows Reflected XSS. This issue affects LearnPress: from n/a through 4.3.6.

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to payment bypass through user-controlled key in all versions up to, and including, 4.3.5. This is due to improper handling of user-supplied request parameters in the REST API endpoint, which passes the unsanitized parameter array to the add_to_cart() function where array_merge() allows attacker-controlled values to overwrite hardcoded defaults. This makes it possible for authenticated attackers, with subscriber-level access and above, to enroll in any paid course entirely free of charge by supplying a quantity value of zero, which causes the order total to calculate as $0 and bypasses all payment gateway requirements.

The LearnPress plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the `delete_question_answer()` function in all versions up to, and including, 4.3.2.8. The plugin exposes a `wp_rest` nonce in public frontend HTML (`lpData`) to unauthenticated visitors, and uses that nonce as the only security gate for the `lp-load-ajax` AJAX dispatcher. The `delete_question_answer` action has no capability or ownership check. This makes it possible for unauthenticated attackers to delete any quiz answer option by sending a crafted POST request with a publicly available nonce.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'skin' attribute of the learn_press_courses shortcode in all versions up to and including 4.3.3. This is due to insufficient input sanitization and output escaping on the 'skin' shortcode attribute. The attribute value is used directly in an sprintf() call that generates HTML (class attribute and data-layout attribute) without any esc_attr() escaping. 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 LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized deletion of quiz question answers due to a missing capability check in the delete_question_answer() function of the EditQuestionAjax class in all versions up to, and including, 4.3.2.8. The AbstractAjax::catch_lp_ajax() dispatcher verifies a wp_rest nonce but performs no current_user_can() check, and the QuestionAnswerModel::delete() method only validates minimum answer counts without checking user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete answer options from any quiz question on the site.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized email notification triggering due to missing capability checks on all 10 functions in the SendEmailAjax class in all versions up to, and including, 4.3.2.8. The AbstractAjax::catch_lp_ajax() dispatcher verifies a wp_rest nonce but performs no current_user_can() check before dispatching to handler functions. The wp_rest nonce is embedded in the frontend JavaScript for all authenticated users. This makes it possible for authenticated attackers, with Subscriber-level access and above, to trigger arbitrary email notifications to admins, instructors, and users, enabling email flooding, social engineering, and impersonation of admin decisions regarding instructor requests.

The LearnPress – WordPress LMS Plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 4.3.2.4 via the get_item_permissions_check function. This makes it possible for unauthenticated attackers to extract sensitive data including user first names and last names. Other information such as social profile links and enrollment are also included.

The LearnPress – WordPress LMS Plugin for WordPress is vulnerable to unauthorized file deletion in versions up to, and including, 4.3.2.2 via the /wp-json/lp/v1/material/{file_id} REST API endpoint. This is due to a parameter mismatch between the DELETE operation and authorization check, where the endpoint uses file_id from the URL path but the permission callback validates item_id from the request body. This makes it possible for authenticated attackers, with teacher-level access, to delete arbitrary lesson material files uploaded by other teachers via sending a DELETE request with their own item_id (to pass authorization) while targeting another teacher's file_id.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the catch_lp_ajax function in all versions up to, and including, 4.3.2. This makes it possible for unauthenticated attackers to modify course contents by adding/removing/updating/re-ordering sections or modifying section items.

Missing Authorization vulnerability in ThimPress LearnPress learnpress allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects LearnPress: from n/a through <= 4.2.9.4.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the statistic function in all versions up to, and including, 4.3.1. This makes it possible for unauthenticated attackers to view the plugin's orders statistics, including total revenue summaries and order status counts

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThimPress LearnPress learnpress allows Stored XSS.This issue affects LearnPress: from n/a through <= 4.2.9.4.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Sensitive Information Disclosure in all versions up to, and including, 4.2.9.4. This is due to missing capability checks in the REST endpoint /wp-json/lp/v1/load_content_via_ajax which allows arbitrary callback execution of admin-only template methods. This makes it possible for unauthenticated attackers to retrieve admin curriculum HTML, quiz questions with correct answers, course materials, and other sensitive educational content via the REST API endpoint granted they can supply valid numeric IDs.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to modification of data in all versions up to, and including, 4.2.9.2. This is due to missing capability checks on the Admin Tools REST endpoints which are registered with permission_callback set to __return_true. This makes it possible for unauthenticated attackers to perform destructive database operations including dropping indexes on any table (including WordPress core tables like wp_options), creating duplicate configuration entries, and degrading site performance via the /wp-json/lp/v1/admin/tools/create-indexs endpoint granted they can provide table names.

Missing Authorization vulnerability in ThimPress LearnPress learnpress allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects LearnPress: from n/a through <= 4.2.7.5.

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in ThimPress LearnPress learnpress.This issue affects LearnPress: from n/a through <= 4.2.7.1.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 4.2.7.5 due to insufficient input sanitization and output escaping of a lesson name. This makes it possible for authenticated attackers, with LP Instructor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The LearnPress WordPress plugin before 4.2.7.2 does not sanitise and escape some of its settings, 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 LearnPress WordPress plugin before 4.2.7.2 does not sanitise and escape some of its settings, 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 LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.2.7.3 via class-lp-rest-material-controller.php. This makes it possible for unauthenticated attackers to extract potentially sensitive paid course material.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to SQL Injection via the 'c_only_fields' parameter of the /wp-json/learnpress/v1/courses REST API endpoint in all versions up to, and including, 4.2.7 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.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to SQL Injection via the 'c_fields' parameter of the /wp-json/lp/v1/courses/archive-course REST API endpoint in all versions up to, and including, 4.2.7 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.

Cross-Site Request Forgery (CSRF) vulnerability in ThimPress LearnPress.This issue affects LearnPress: from n/a through 4.2.6.8.2.

Authorization Bypass Through User-Controlled Key vulnerability in ThimPress LearnPress allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects LearnPress: from n/a through 4.2.6.8.2.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to time-based SQL Injection via the 'order' parameter in all versions up to, and including, 4.2.6.9.3 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 Contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.2.6.8.2 via the 'render_content_block_template' function. This makes it possible for authenticated attackers, with Contributor-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized user registration due to a missing capability check on the 'register' function in all versions up to, and including, 4.2.6.8.1. This makes it possible for unauthenticated attackers to bypass disabled user registration to create a new account with the default role.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthenticated bypass to user registration in versions up to, and including, 4.2.6.8.1. This is due to missing checks in the 'check_validate_fields' function in the checkout. This makes it possible for unauthenticated attackers to register as the default role on the site, even if registration is disabled.

Missing Authorization vulnerability in ThimPress LearnPress.This issue affects LearnPress: from n/a through 4.2.3.

Missing Authorization vulnerability in ThimPress LearnPress.This issue affects LearnPress: from n/a through 4.2.3.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.2.6.8 due to incorrect implementation of get_items_permissions_check function. This makes it possible for unauthenticated attackers to extract basic information about website users, including their emails

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘id’ parameter in all versions up to, and including, 4.2.6.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to bypass to user registration in versions up to, and including, 4.2.6.5. This is due to missing checks in the 'create_account' function in the checkout. This makes it possible for unauthenticated attackers to register as the default role on the site, even if registration is disabled.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to time-based SQL Injection via the ‘term_id’ parameter in versions up to, and including, 4.2.6.5 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.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_post_materials' function in versions up to, and including, 4.2.6.5. This makes it possible for authenticated attackers, with Instructor-level permissions and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘layout_html’ parameter in all versions up to, and including, 4.2.6.5 due to insufficient input sanitization and output escaping. 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 LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the _id value in all versions up to, and including, 4.2.6.4 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 LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Course, Lesson, and Quiz title and content in all versions up to, and including, 4.2.6.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with LP Instructor-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.2.6.3 due to missing validation on a user controlled key when looking up order information. This makes it possible for authenticated attackers to obtain information on orders placed by other users and guests, which can be leveraged to sign up for paid courses that were purchased by guests. Emails of other users are also exposed.

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.0.0. This is due to missing or incorrect nonce validation on the filter_users functions. This makes it possible for unauthenticated attackers to elevate their privileges to that of a teacher via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The LearnPress WordPress plugin before 4.2.5.5 does not sanitise and escape user input before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

The LearnPress plugin for WordPress is vulnerable to Command Injection in all versions up to, and including, 4.2.5.7 via the get_content function. This is due to the plugin making use of the call_user_func function with user input. This makes it possible for unauthenticated attackers to execute any public function with one parameter, which could result in remote code execution.

The LearnPress plugin for WordPress is vulnerable to time-based SQL Injection via the ‘order_by’ parameter in all versions up to, and including, 4.2.5.7 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.

The LearnPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.2.5.7 via the /wp-json/lp/v1/profile/course-tab REST API due to missing validation on the 'userID' user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve the details of another user's course progress.

Local File Inclusion vulnerability in LearnPress – WordPress LMS Plugin <= 4.1.7.3.2 versions.

SQL Injection (SQLi) vulnerability in LearnPress – WordPress LMS Plugin <= 4.1.7.3.2 versions.

SQL Injection vulnerability in LearnPress – WordPress LMS Plugin <= 4.1.7.3.2 versions.

The LearnPress WordPress plugin before 4.1.7.2 unserialises user input in a REST API endpoint available to unauthenticated users, which could lead to PHP Object Injection when a suitable gadget is present, leadint to remote code execution (RCE). To successfully exploit this vulnerability attackers must have knowledge of the site secrets, allowing them to generate a valid hash via the wp_hash() function.

The LearnPress WordPress plugin before 4.1.6 does not sanitise and escape the lp-dismiss-notice before outputting it back via the lp_background_single_email AJAX action, leading to a Reflected Cross-Site Scripting

Users of the LearnPress WordPress plugin before 4.1.5 can upload an image as a profile avatar after the registration. After this process the user crops and saves the image. Then a "POST" request that contains user supplied name of the image is sent to the server for renaming and cropping of the image. As a result of this request, the name of the user-supplied image is changed with a MD5 value. This process can be conducted only when type of the image is JPG or PNG. An attacker can use this vulnerability in order to rename an arbitrary image file. By doing this, they could destroy the design of the web site.

The LearnPress WordPress plugin before 4.1.4 does not sanitise, validate and escape the id parameter before using it in SQL statements when duplicating course/lesson/quiz/question, leading to SQL Injections issues

The LearnPress WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping on the $custom_profile parameter found in the ~/inc/admin/views/backend-user-profile.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.1.3.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled. Please note that this is seperate from CVE-2021-24702.

The LearnPress WordPress plugin before 4.1.3.1 does not properly sanitize or escape various inputs within course settings, which could allow high privilege users to perform Cross-Site Scripting attacks when the unfiltred_html capability is disallowed

The LearnPress plugin before 3.2.6.9 for WordPress allows remote attackers to escalate the privileges of any user to LP Instructor via the accept-to-be-teacher action parameter.

LearnPress Wordpress plugin version prior and including 3.2.6.7 is vulnerable to SQL Injection

be_teacher in class-lp-admin-ajax.php in the LearnPress plugin 3.2.6.5 and earlier for WordPress allows any registered user to assign itself the teacher role via the wp-admin/admin-ajax.php?action=learnpress_be_teacher URI without any additional permission checks. Therefore, any user can change its role to an instructor/teacher and gain access to otherwise restricted data.

Cross-site scripting vulnerability in LearnPress prior to version 3.1.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Open redirect vulnerability in LearnPress prior to version 3.1.0 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

SQL injection vulnerability in the LearnPress prior to version 3.1.0 allows attacker with administrator rights to execute arbitrary SQL commands via unspecified vectors.