Is Easy Digital Downloads safe? Known vulnerabilities and latest version

The Easy Digital Downloads plugin for WordPress is vulnerable to authentication bypass leading to administrator account takeover in all versions up to, and including, 3.7.2. During a PayPal guest checkout, the email address entered in the guest-checkout field is trusted as proof of identity: edd_get_purchase_form_user() binds the new guest order to an existing WordPress user purely on an email-address match, rewriting the order's user_id to that user's ID. The PayPal capture sink PurchaseUser::maybe_log_in_after_capture() then looked the user up by the order email (get_user_by( 'email', $order->email )) and, when $order->user_id equalled that user's ID (which the email-binding step guarantees), issued an authenticated session with wp_set_auth_cookie(). An unauthenticated attacker who starts a guest checkout using an administrator's email address (where that administrator has no existing EDD customer record) and completes the PayPal purchase flow therefore receives an authenticated session as that administrator — a full account takeover. The same sink is reachable through the standard PayPal checkout and the REST UnbrandedCard and Fastlane flows.

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Awesomemotive Easy Digital Downloads easy-digital-downloads allows Leveraging Race Conditions.This issue affects Easy Digital Downloads: from n/a through 3.7.1.

The Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PayPal IPN Parameters in all versions up to, and including, 3.6.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Easy Digital Downloads WordPress plugin before 3.7.1 does not consult the site's user registration setting before creating a WordPress account, allowing unauthenticated users to create an account and receive a logged-in session even when registration is disabled. The created account receives the site's default role.

The Easy Digital Downloads WordPress plugin before 3.7.1 does not restrict a block's order data to the current user, allowing users with subscriber-level access to view other customers' recent order products and obtain signed download links that grant access to paid digital files without purchase.

Missing Authorization vulnerability in Awesomemotive Easy Digital Downloads easy-digital-downloads allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Easy Digital Downloads: from n/a through 3.7.1.

Shop manager SQL Injection in Easy Digital Downloads <= 3.7.0 versions.

The Easy Digital Downloads plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to and including 3.6.9. This is due to insufficient file type validation in the edd_do_ajax_import_file_upload() function , which only checks the client-supplied $_FILES['edd-import-file']['type'] Content-Type header against an allow-list of CSV mime types, then uses raw move_uploaded_file() (bypassing wp_handle_upload()'s core MIME enforcement) to write the file under its original extension into the web-accessible wp-content/uploads/edd/exports/ directory. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Administrator Arbitrary File Deletion in Easy Digital Downloads <= 3.6.9 versions.

Unauthenticated Broken Authentication in Easy Digital Downloads <= 3.6.7 versions.

Unauthenticated Broken Access Control in Easy Digital Downloads <= 3.6.5 versions.

The Easy Digital Downloads plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.6.7. This is due to missing nonce verification in the `handle_oauth_redirect()` function, which is registered on the `admin_init` hook and processes Square OAuth tokens from a user-supplied GET parameter without any CSRF token validation. This makes it possible for unauthenticated attackers to overwrite the store's Square payment gateway credentials by tricking a logged-in administrator into clicking a crafted link, potentially resulting in payment account hijacking.

The Easy Digital Downloads plugin for WordPress is vulnerable to Unvalidated Redirect in all versions up to, and including, 3.6.2. This is due to insufficient validation on the redirect url supplied via the 'edd_redirect' parameter. This makes it possible for unauthenticated attackers to redirect users with the password reset email to potentially malicious sites if they can successfully trick them into performing an action.

The Easy Digital Downloads plugin for WordPress is vulnerable to Order Manipulation in all versions up to, and including, 3.5.2 due to an order verification bypass. The verification is unconditionally skipped when the POST body includes verification_override=1. Because this value is attacker-supplied, an unauthenticated actor can submit a forged IPN and have it treated as verified, even on production sites and with verification otherwise enabled. A valid PayPal transaction id is needed, restricting order manipulation to orders placed by the attacker. This, in turn, requires them to have a customer account.

The Easy Digital Downloads plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.5.0. This is due to missing nonce validations in the edd_sendwp_disconnect() and edd_sendwp_remote_install() functions. This makes it possible for unauthenticated attackers to deactivate or download and activate the SendWP plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's edd_receipt shortcode in all versions up to, and including, 3.3.8.1 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 Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.3.6.1 via the edd_ajax_get_download_title() function. This makes it possible for unauthenticated attackers to extract private post titles of downloads. The impact here is minimal.

The Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Title value in all versions up to, and including, 3.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.2 via the file download functionality. This makes it possible for authenticated attackers, with Administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.

The Easy Digital Downloads plugin for WordPress is vulnerable to Improper Authorization in versions 3.1 through 3.3.4. This is due to a lack of sufficient validation checks within the 'verify_guest_email' function to ensure the requesting user is the intended recipient of the purchase receipt. This makes it possible for unauthenticated attackers to bypass intended security restrictions and view the receipts of other users, which contains a link to download paid content. Successful exploitation requires knowledge of another customers email address as well as the file ID of the content they purchased.

Missing Authorization vulnerability in Syed Balkhi Easy Digital Downloads easy-digital-downloads allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Easy Digital Downloads: from n/a through <= 3.1.5.

Missing Authorization vulnerability in Easy Digital Downloads allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Easy Digital Downloads: from n/a through 3.2.12.

The Easy Digital Downloads – Simple eCommerce for Selling Digital Files plugin for WordPress is vulnerable to deserialization of untrusted input via the 'upload[file]' parameter in versions up to, and including 3.3.3. This makes it possible for authenticated administrative users to call files using a PHAR wrapper, that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Easy Digital Downloads allows SQL Injection.This issue affects Easy Digital Downloads: from n/a through 3.2.12.

The Easy Digital Downloads – Sell Digital Files & Subscriptions (eCommerce Store + Payments Made Easy) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the currency value in all versions up to, and including, 3.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The Easy Digital Downloads – Sell Digital Files & Subscriptions (eCommerce Store + Payments Made Easy) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Agreement Text value in all versions up to, and including, 3.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Easy Digital Downloads.This issue affects Easy Digital Downloads: from n/a through 3.2.11.

Cross-Site Request Forgery (CSRF) vulnerability in Easy Digital Downloads.This issue affects Easy Digital Downloads: from n/a through 3.2.11.

Cross-Site Request Forgery (CSRF) vulnerability in Easy Digital Downloads.This issue affects Easy Digital Downloads: from n/a through 3.2.6.

The Easy Digital Downloads – Sell Digital Files & Subscriptions (eCommerce Store + Payments Made Easy) plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.9. This makes it possible for unauthenticated attackers to download the debug log via Directory Listing. This file may include PII.