CVE-2026-13332
Deferred Deferred - Pending Action

Unauthenticated Session Termination in Masteriyo LMS WordPress Plugin

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: WPScan

Description
The Masteriyo LMS WordPress plugin before 2.3.1 does not correctly verify authorization on an unauthenticated AJAX action used to clear user sessions, allowing unauthenticated attackers to terminate the active sessions (force-logout) of any user on the site, including administrators.

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Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-08-16
AI Q&A
2026-07-27
EPSS Evaluated
2026-08-15
NVD
CVE-2026-13332
EUVD
EUVD-2026-49070

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
masteriyo lms to 2.3.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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Executive Summary

This vulnerability in the Masteriyo LMS WordPress plugin before version 2.3.1 allows unauthenticated attackers to force-logout any user, including administrators, by exploiting an improperly secured AJAX action that clears user sessions. Attackers can harvest a valid nonce from a non-admin login and send a crafted request to terminate active sessions.

Detection Guidance

Check if the Masteriyo LMS plugin version is below 2.3.1 by inspecting WordPress plugin files or using commands like 'wp plugin list' in WP-CLI. Monitor for unusual session terminations or failed login attempts.

Impact Analysis

This vulnerability can disrupt website operations by forcing users to re-authenticate, potentially locking them out. Attackers could use it to disrupt administrative access or cause inconvenience by repeatedly logging users out. It may also enable further attacks if combined with other vulnerabilities.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by enabling unauthorized session termination, potentially disrupting access controls and data protection measures. Forced logouts may interfere with audit trails and user authentication requirements.

Mitigation Strategies

Update the Masteriyo LMS plugin to version 2.3.1 or later immediately. If updating is not possible, disable the plugin temporarily until a patch is applied.

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