CVE-2025-54571

MEDIUM
Published Aug 6, 2025 Modified Nov 3, 2025 CWE-252 CWE-79

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.

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CVSS v3.1 Score

6.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-252 CWE-252
CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor Product
owasp modsecurity

References

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2025-54571? +
CVE-2025-54571 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-54571? +
CVE-2025-54571 affects products from owasp, specifically: modsecurity. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-54571? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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