Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in chrisbadgett LifterLMS lifterlms allows SQL Injection.This issue affects LifterLMS: from n/a through <= 8.0.6.

The LifterLMS WordPress plugin before 8.0.1 does not sanitise and escape a parameter 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 LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to Unauthenticated Post Trashing due to a missing capability check on the delete_access_plan function and the related AJAX calls in all versions up to, and including, 8.0.1. This makes it possible for unauthenticated attackers to change status to "Trash" for every published post, therefore limiting the availability of the website's content.

The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to arbitrary post deletion due to a missing capability check on the 'llms_delete_cert' action in all versions up to, and including, 7.8.5. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary posts.

The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to blind SQL Injection via the 'order' parameter in all versions up to, and including, 7.7.5 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-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 LifterLMS – WordPress LMS Plugin for eLearning plugin for WordPress is vulnerable to SQL Injection via the orderBy attribute of the lifterlms_favorites shortcode in all versions up to, and including, 7.6.2 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.

Cross-Site Request Forgery (CSRF) vulnerability in LifterLMS.This issue affects LifterLMS: from n/a through 7.5.0.

The LifterLMS – WordPress LMS Plugin for eLearning plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'process_review' function in all versions up to, and including, 7.5.1. This makes it possible for unauthenticated attackers to publish an unrestricted number of reviews on the site.

The LifterLMS – WordPress LMS Plugin for eLearning plugin for WordPress is vulnerable to Directory Traversal in versions up to, and including, 7.4.2 via the maybe_serve_export function. This makes it possible for authenticated attackers, with administrator or LMS manager access and above, to read the contents of arbitrary CSV files on the server, which can contain sensitive information as well as removing those files from the server.

The LifterLMS PayPal WordPress plugin before 1.4.0 does not sanitise and escape some parameters from the payment confirmation page before outputting them back in the page, leading to a Reflected Cross-Site Scripting issue

The LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.2 was affected by an IDOR issue, allowing students to see other student answers and grades

The 'State' field of the Edit profile page of the LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.1 is not properly sanitised when output in the About section of the profile page, leading to a stored Cross-Site Scripting issue. This could allow low privilege users (such as students) to elevate their privilege via an XSS attack when an admin will view their profile.

LifterLMS Wordpress plugin version below 3.37.15 is vulnerable to arbitrary file write leading to remote code execution

An issue was discovered in the LifterLMS plugin through 3.34.5 for WordPress. The upload_import function in the class.llms.admin.import.php script is prone to an unauthenticated options import vulnerability that could lead to privilege escalation (administrator account creation), website redirection, and stored XSS.