CVE-2026-91025 Booking Manager < 2.1.21 - Subscriber+ Arbitrary User Plugin Meta Modification via IDOR
Authenticated subscribers can modify arbitrary user settings, including administrators, due to missing authorization checks in the Booking Manager plugin.
- 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-2026-91025?
CVE-2026-91025 is a medium-severity missing authorization vulnerability in Unknown Booking Manager, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Booking Manager WordPress plugin before 2.1.21 does not verify that a request to modify a user's Booking Manager WordPress plugin before 2.1.21-specific settings targets the requesting user's own account, allowing any authenticated user with subscriber-level access and above to create or overwrite the Booking Manager WordPress plugin before 2.1.21's per-user settings on arbitrary users, including administrators.
Weakness: CWE-639
Which versions are affected by CVE-2026-91025?
How do I fix CVE-2026-91025?
No fix has been published for CVE-2026-91025 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-2026-91025 being exploited?
There is no known exploitation of CVE-2026-91025 in the wild and no public exploit code.
Sources
Also known as GHSA-f2f6-fww5-gh59.