CVE-2025-54571

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.

Affected products

Apache, Debian, Iis, Modsecurity, Nginx, Suse

Owasp Modsecurity

< 2.9.12

Fix

Available

CVSS 4.0

6.9 MEDIUM

CVSS 3.1

6.1 MEDIUM

EPSS

0.3% (21th percentile)

Weakness

CWE-79, CWE-252

NVD status

Modified

Published

2025-08-05

No exploit for CVE-2025-54571 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.