What the vulnerability does
01Description
The One to one user Chat by WPGuppy plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the /wp-json/guppylite/v2/channel-authorize rest endpoint in all versions up to, and including, 1.1.4. This makes it possible for unauthenticated attackers to intercept and view private chat messages between users.
Explanation of Vulnerability in Simple Terms
02Summary
One to One User Chat by WPGuppy versions 1.1.4 and earlier contain a missing authentication control that allows unauthenticated attackers to read sensitive user information over the network. The vulnerability requires no user interaction and can be exploited remotely. Site administrators should update to a version newer than 1.1.4 as soon as a patch becomes available.
What an attacker can do
03Attacker Capabilities
Read sensitive user information without logging in.
Potential impact on your site
04Site Impact
Unauthorized users can access private chat data and user details stored by the plugin.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
February 14, 2026
CVE published
April 8, 2026
Record updated