Vulnerabilities / Tutor LMS / WPSEC-2026-0519
Tutor LMS <= 4.1.0 - Authenticated (Tutor Instructor+) Stored Cross-Site Scripting via Quiz Question Feedback
Medium 6.4
CWE-79Fixed in 4.1.1
- ID
- WPSEC-2026-0519
- Plugin
- Tutor LMS – eLearning and online course solution (tutor)
- Affected
- from 4.1.0 before 4.1.1
- Remediation
- Update to 4.1.1 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Low among sites WPSec scans, 2026-10-07
- Attack surface
- Tutor LMS on WPSec AttackSurface
- Fix released
- Published
Description
The Tutor LMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via per-question quiz feedback in version 4.1.0 due to insufficient output escaping. Feedback text was printed as JSON inside a single-quoted Alpine.js attribute on the quiz attempt review page without escaping single quotes, which allows breaking out of the attribute. This makes it possible for authenticated attackers with Tutor Instructor-level access and above to inject arbitrary web scripts that execute when another user, such as an administrator, reviews the affected quiz attempt.
References
- https://wpsec.com/vuln/WPSEC-2026-0519/
- https://plugins.svn.wordpress.org/tutor/tags/4.1.1/
- https://wordpress.org/plugins/tutor/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS