Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.11 and below, an attacker can override the HTTP response’s Content-Type, which could lead to several issues depending on the HTTP scenario. For example, we have demonstrated the potential for XSS and arbitrary script source code disclosure in the latest version of mod_security2. This issue is fixed in version 2.9.12.
Problem types
CWE-252: Unchecked Return Value
Product status
References
github.com/...curity/security/advisories/GHSA-cg44-9m43-3f9v
lists.debian.org/debian-lts-announce/2025/09/msg00008.html
github.com/...curity/security/advisories/GHSA-cg44-9m43-3f9v
github.com/owasp-modsecurity/ModSecurity/issues/2514
github.com/...ommit/6d7e8eb18f2d7d368fb8e29516fcdeaeb8d349b8