CVE-2026-16759
Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Remote Code Execution limited to zero-argument function invocation in all versions up to, and including, 4.0.5 via the tutor_course_filter_ajax AJAX action. This is due to missing authorization on the handler combined with unsanitized array keys being passed to extract() inside tutor_load_template(), allowing attacker-controlled POST data to overwrite the local $template variable and, in the resulting templates/single-content-loader.php template, the $method_map and $context variables invoked at $method_map[$context](). This makes it possible for unauthenticated attackers to call an arbitrary zero-argument PHP function server-side and, via WordPress core edit_user(), to create a persistent subscriber-level account from request parameters.
Affected WordPress components
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Tutor LMS – eLearning and online course solution Plugin · tutorUp to and including 4.0.5View on WordPress.org
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Tutor Theme · tutorUp to and including 4.0.5View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- themeum Tutor LMS – eLearning and online course solution — Up to and including 4.0.5
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L224
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L58
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L118
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L128
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/templates/single-content-loader.php#L30
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/templates/single-content-loader.php#L71
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3653079/tutor/trunk/templates/single-content-loader.php
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/4.0.5&new_path=%2Ftutor/tags/4.0.6
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/65f68a49-8ded-479f-a9c3-187703bfae65?source=cve
- nvd.nist.gov Official NVD record