A vulnerability was found in chuhpl Book a Room Event Calendar Plugin up to 1.9 on WordPress. It has been rated as problematic. This affects the function
settings_form of the component Setting Handler. The manipulation of the argument action leads to cross-site request forgery.
This vulnerability is referenced as CVE-2026-9721. Remote exploitation of the attack is possible. No exploit is available.
Applying a patch is the recommended action to fix this issue.