What the vulnerability does
01Description
The Online Booking & Scheduling Calendar for WordPress by vcita plugin for WordPress is vulnerable to Cross-Site Request Forgery due to a missing nonce check on the vcita_logout_callback function in versions up to, and including, 4.5. This makes it possible for unauthenticated to logout a vctia connected account which would cause a denial of service on the appointment scheduler, via a forged request granted they can trick a site user into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
02Summary
The vcita Online Booking & Scheduling Calendar plugin for WordPress versions 4.5 and earlier is vulnerable to cross-site request forgery (CSRF). An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without their knowledge. This could result in unauthorized changes to booking settings, calendar configurations, or other plugin data.
What an attacker can do
03Attacker Capabilities
Perform unwanted actions on the site (modify settings, change data) by tricking an admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
Unauthorized changes to booking calendar settings, scheduling rules, or plugin configuration if an admin visits a malicious link.
Conditions required to exploit
05Prerequisites
Site admin must be logged in and visit a page controlled by the attacker; no special plugin configuration required.
Key dates
06Disclosure timeline
June 3, 2023
CVE published
April 8, 2026
Record updated
