CVE-2026-112328 Sensei LMS 4.26.4 Broken Access Control via add_new_module_term AJAX
Authenticated teachers can modify course content owned by others due to missing authorization checks in the module term assignment handler.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112328?
CVE-2026-112328 is a medium-severity missing authorization vulnerability in Automattic Sensei LMS, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Sensei LMS WordPress plugin before 4.26.4 contains a broken access control vulnerability in the add_new_module_term AJAX handler that allows authenticated Teacher-role attackers to assign module taxonomy terms to arbitrary courses by supplying a crafted course_id, since the handler validates only a generic nonce and checks manage_options solely for slug prefixing rather than verifying course edit permissions. Attackers can reuse a nonce obtained from their own course metabox to call wp_set_object_terms against courses owned by other teachers or administrators, enabling unauthorized modification of course content they do not own.
Weakness: CWE-862
Which versions are affected by CVE-2026-112328?
How do I fix CVE-2026-112328?
No fix has been published for CVE-2026-112328 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-112328 being exploited?
There is no known exploitation of CVE-2026-112328 in the wild and no public exploit code.
Sources
Also known as GHSA-3hm9-hgv5-w9hg.