CVE-2026-112329

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://senseilms.com/release-notes/
https://www.vulncheck.com/advisories/sensei-lms-broken-access-control-via-save-new-message

Configurations

No configuration.

History

19 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 15:17

Updated : 2026-10-22 03:16

NVD link : CVE-2026-112329

Mitre link : CVE-2026-112329

CVE.ORG link : CVE-2026-112329

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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