Vulnerabilities / LifterLMS / WPSEC-2026-2481
LifterLMS <= 10.3.2 - Authenticated (Subscriber+) HTML Injection via Quiz Attempt Answers
Low 3.5
CWE-79Fixed in 11.0.0
- ID
- WPSEC-2026-2481
- Plugin
- LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes (lifterlms)
- Affected
- all versions before 11.0.0
- Remediation
- Update to 11.0.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-04
- Attack surface
- LifterLMS on WPSec AttackSurface
- Fix released
- Published
Description
The LifterLMS plugin for WordPress is vulnerable to HTML Injection via quiz attempt answers in all versions up to, and including, 10.3.2 due to insufficient sanitization of student-submitted answer HTML, which allowed form controls and data-* attributes, before it is displayed to instructors inside the quiz grading form. This makes it possible for authenticated attackers with student (subscriber-level) access to inject form fields and data attributes that the grading scripts read, which can manipulate the grading form when an instructor reviews the attempt.
References
- https://wpsec.com/vuln/WPSEC-2026-2481/
- https://plugins.svn.wordpress.org/lifterlms/tags/11.0.0/
- https://wordpress.org/plugins/lifterlms/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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