What the vulnerability does
01Description
The Easy Appointments plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.12.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to cancel all upcoming appointments site-wide by marking every future appointment stored by the plugin as abandoned. The nonce required to authenticate the cancellation request is printed on the Appointments admin page, which is itself gated only by the edit_posts capability that Authors possess, making the nonce readily accessible to low-privileged users.
Explanation of Vulnerability in Simple Terms
02Summary
Easy Appointments versions up to 3.12.27 lack proper authorization checks, allowing authenticated users to modify data they should not have access to. An attacker with a low-privilege account can alter records through the application's API or interface without additional restrictions. The vulnerability affects data integrity but does not expose sensitive information or disrupt service availability.
What an attacker can do
03Attacker Capabilities
Modify or alter data in the application that should be restricted to other users or roles.
Potential impact on your site
04Site Impact
Users' appointment data or settings could be altered by other authenticated users without authorization.
Conditions required to exploit
05Prerequisites
Attacker must have a valid low-privilege user account and network access to the application.
Key dates
06Disclosure timeline
July 10, 2026
CVE published
