The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the…
CVE-2026-119098
The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'answer[]' parameter in all versions up to, and including, 10.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker to be enrolled as a student in a course containing a Content-type quiz question; the injected payload executes in the administrator's browser session during the normal grading workflow when 'Start a Review' is clicked on the affected attempt.
Assessment
- CVSS
- 6.4 (v3.1)
- Severity
- Medium
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 7 November 2026
- Last updated
- 7 November 2026
- Assigner
- Wordfence
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
At the source
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/571f35bf-d45b-49d5-b44a-8620e954928e?source=cve
- https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.3.2/assets/js/llms-quiz-attempt-review.js#L63
- https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.3.2/templates/quiz/results-attempt-questions-list.php#L93
- https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.3.2/includes/models/model.llms.quiz.attempt.question.php#L96
- https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.3.2/includes/class.llms.ajax.handler.php#L714
- https://plugins.trac.wordpress.org/changeset/3781956/lifterlms/trunk/assets/js/llms-quiz-attempt-review.js
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