{"id":"CVE-2026-16759","aliases":["EUVD-2026-67406","GHSA-hj5q-894h-jcm9"],"status":"published","title":"Tutor LMS \u003c= 4.0.5 - Unauthenticated Remote Code Execution via 'template' and 'data' POST Parameters","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00748,"percentile":0.55375,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2026-08-28T03:39:35Z","modified":"2026-08-28T16:17:07Z","products":[{"vendor":"themeum","product":"tutor lms – elearning and online course solution"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/65f68a49-8ded-479f-a9c3-187703bfae65?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/templates/single-content-loader.php#L71"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/templates/single-content-loader.php#L30"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L118"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L128"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L224"},{"url":"https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L58"},{"url":"https://plugins.trac.wordpress.org/changeset/3653079/tutor/trunk/templates/single-content-loader.php"},{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/4.0.5\u0026new_path=%2Ftutor/tags/4.0.6"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16759"},{"url":"https://github.com/advisories/GHSA-hj5q-894h-jcm9"}],"sources":{"cve":[{"id":"CVE-2026-16759","title":"Tutor LMS \u003c= 4.0.5 - Unauthenticated Remote Code Execution via 'template' and 'data' POST Parameters","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.","status":"published","published":"2026-08-28T03:39:35.072Z","modified":"2026-08-28T15:22:17.595Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-67406","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.","status":"published","published":"2026-08-28T03:39:35Z","modified":"2026-08-28T15:22:17Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:23.608347Z"}],"ghsa":[{"id":"GHSA-hj5q-894h-jcm9","title":"The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Remote...","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.","status":"published","published":"2026-08-28T06:31:04Z","modified":"2026-08-28T06:31:04Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:11:06.356167Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-08-28T05:16:41.66Z","modified":"2026-08-28T16:17:07.72Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:12:42.035353Z"}]}}