{"cve":"CVE-2026-16759","nvd":{"published":"2026-08-28T05:16:41.660","modified":"2026-08-28T16:17:07.720","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-74"],"references":["https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L224","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Course_Filter.php#L58","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L118","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/includes/tutor-template-functions.php#L128","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/templates/single-content-loader.php#L30"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-16759","score":0.00748,"percentile":0.54891,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}