Simple Ajax Chat – Add a Fast, Secure Chat Box, CVE-2026-2987

CVE, Research URL: CVE-2026-2987
Home page URL: Security reports for Simple Ajax Chat – Add a Fast, Secure Chat Box
Application: Simple Ajax Chat – Add a Fast, Secure Chat Box
Published on: Mar 12, 2026
Research Description: The Simple Ajax Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'c' parameter in versions up to, and including, 20260217 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected versions: max 20260301.
Status: vulnerable