CVE-2026-84901 Eventin < 4.1.22 - Contributor+ Site Homepage Hijack and Event Taxonomy Manipulation via Missing Authorization
Contributors can hijack the site homepage and manipulate global event taxonomies due to missing authorization checks in REST routes.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84901?
CVE-2026-84901 is a medium-severity missing authorization vulnerability in Unknown Eventin, published on 5 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Eventin WordPress plugin before 4.1.22 does not properly check authorization on several of its event-management REST routes, allowing users with contributor-level access and above to change the site's front-page setting to an event they do not own and to create, edit and delete global event and speaker taxonomy terms they should not be able to manage.
Weakness: CWE-862
Which versions are affected by CVE-2026-84901?
How do I fix CVE-2026-84901?
No fix has been published for CVE-2026-84901 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-2026-84901 being exploited?
There is no known exploitation of CVE-2026-84901 in the wild and no public exploit code.
Sources
Also known as GHSA-88pj-jf5h-6qhv.