What the vulnerability does
01Description
The Simple Ajax Chat – Add a Fast, Secure Chat Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 20231101 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Simple Ajax Chat contains a cross-site scripting (XSS) vulnerability in versions up to 20231101. An attacker with high privileges can inject malicious scripts that affect other users or the site's functionality. The vulnerability requires high attack complexity and does not require user interaction. Update to a version newer than the affected range.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
A privileged user could inject code affecting other users or the chat system's integrity.
Conditions required to exploit
05Prerequisites
Attacker must have high-level privileges (e.g., admin or moderator role) on the site.
Key dates
06Disclosure timeline
March 27, 2024
CVE published
April 8, 2026
Record updated
