CVE-2026-112329

Description

The Sensei LMS WordPress plugin before 4.26.4 contains a broken access control vulnerability in the legacy save_new_message handler hooked on the init action, which validates only a generic nonce without verifying course enrollment or restricting post_id to valid post types. Authenticated attackers, including unprivileged Subscribers, can supply an arbitrary post_id for any course, lesson, or quiz to create a private message addressed to that post's author, bypassing the enrollment checks enforced by the newer REST send-message controller.

References

https://www.vulncheck.com/advisories/sensei-lms-broken-access-control-via-save-new-message

https://senseilms.com/release-notes/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104388

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS