What the vulnerability does
01Description
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Jeff Starr Simple Ajax Chat simple-ajax-chat allows Retrieve Embedded Sensitive Data.This issue affects Simple Ajax Chat: from n/a through <= 20251121.
Explanation of Vulnerability in Simple Terms
02Summary
Simple Ajax Chat versions up to 20251121 expose sensitive information to unauthenticated attackers over the network. The vulnerability allows reading of limited confidential data without requiring user interaction or special network conditions. No integrity or availability impact has been identified. Site administrators should update to a version newer than the affected range.
What an attacker can do
03Attacker Capabilities
Read sensitive information from the chat application without authentication.
Potential impact on your site
04Site Impact
Confidential chat data or user information may be exposed to anyone on the internet.
Conditions required to exploit
05Prerequisites
Network access to the affected Simple Ajax Chat installation; no authentication required.
Key dates
06Disclosure timeline
February 23, 2026
CVE published
April 28, 2026
Record updated