Vulnerabilities / LifterLMS / WPSEC-2026-0710
LifterLMS <= 10.3.0 - Authentication Bypass via REST API Key Route Restriction
Medium 5.4
CWE-287Fixed in 10.3.1
- ID
- WPSEC-2026-0710
- Plugin
- LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes (lifterlms)
- Affected
- all versions before 10.3.1
- Remediation
- Update to 10.3.1 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness
- CWE-287
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-10
- Attack surface
- LifterLMS on WPSec AttackSurface
- Fix released
- Published
Description
The LifterLMS plugin for WordPress is vulnerable to an authentication restriction bypass in all versions up to, and including, 10.3.0. The REST API key authentication decided whether a request targeted a LifterLMS route by reading the request path. WordPress, however, serves the route given in a 'rest_route' request argument, which takes precedence over the path. This makes it possible for holders of LifterLMS API key credentials to authenticate requests to non-LifterLMS WordPress REST API routes as the user the key belongs to, beyond the intended scope of the key.
References
- https://wpsec.com/vuln/WPSEC-2026-0710/
- https://plugins.svn.wordpress.org/lifterlms/tags/10.3.1/
- https://wordpress.org/plugins/lifterlms/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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