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.
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Affected Vendors & Products
References
History
Fri, 23 Oct 2026 16:30:00 +0000
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ssvc
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Wed, 21 Oct 2026 17:15:00 +0000
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Automattic
Automattic sensei Lms Wordpress-extensions Wordpress-extensions sensei Lms |
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Automattic
Automattic sensei Lms Wordpress-extensions Wordpress-extensions sensei Lms |
Mon, 19 Oct 2026 15:00:00 +0000
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| 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. | |
| Title | Sensei LMS 4.26.4 Broken Access Control via save_new_message | |
| Weaknesses | CWE-862 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-19T14:45:24.844Z
Updated: 2026-10-22T02:58:48.591Z
Reserved: 2026-10-19T14:41:46.700Z
Link: CVE-2026-112329
Updated: 2026-10-22T02:58:43.887Z
Status : Deferred
Published: 2026-10-19T15:17:06.420
Modified: 2026-10-22T03:16:37.673
Link: CVE-2026-112329
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