CVE-2025-54571
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
ProductOwasp Modsecurity
PublishedAug 6, 2025
First seenAug 6, 2025
Weakness typeCWE-252CWE-252
How to fix
Update
- owasp modsecurity2.9.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| owasp modsecurity | 2.0.0 ≤ v < 2.9.12 | 2.9.12 |
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