What the vulnerability does
01Description
The WP-Chatbot for Messenger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.9. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the site's MobileMonkey API token and company ID options, which can be used to hijack chatbot configuration and redirect visitor conversations to an attacker-controlled MobileMonkey account.
Explanation of Vulnerability in Simple Terms
02Summary
WP-Chatbot for Messenger versions 4.9 and earlier lack proper authorization checks, allowing unauthenticated attackers to modify data through network requests. The vulnerability requires no user interaction and affects the integrity of stored information. Site administrators should update to a version newer than 4.9 when available.
What an attacker can do
03Attacker Capabilities
Modify data on the site without logging in or having permission to do so.
Potential impact on your site
04Site Impact
Unauthorized changes to chatbot configuration or data, potentially affecting customer interactions and trust.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
March 21, 2026
CVE published
April 8, 2026
Record updated
