CVE-2025-54571— ModSecurity's Insufficient Return Value Handling can Lead to XSS and Source Code Disclosure
Quick assessment
Affected
owasp-modsecurity ModSecurity
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
ModSecurity是OWASP ModSecurity开源的一个开源、跨平台的web应用程序防火墙（WAF）引擎。 ModSecurity 2.9.11及之前版本存在安全漏洞，该漏洞源于可覆盖HTTP响应的Content-Type，可能导致跨站脚本攻击和脚本源代码泄露。
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I. Basic Information for CVE-2025-54571
Vulnerability Information
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Vulnerability Title
ModSecurity's Insufficient Return Value Handling can Lead to XSS and Source Code Disclosure
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加检查的返回值
Source: CVE Program / CVE List V5
Vulnerability Title
ModSecurity 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ModSecurity是OWASP ModSecurity开源的一个开源、跨平台的web应用程序防火墙（WAF）引擎。 ModSecurity 2.9.11及之前版本存在安全漏洞，该漏洞源于可覆盖HTTP响应的Content-Type，可能导致跨站脚本攻击和脚本源代码泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| owasp-modsecurity | ModSecurity | < 2.9.12 | - |
|
II. Public POCs for CVE-2025-54571
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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CVE-2025-52891
ModSecurity empty XML tag causes segmentation fault
Same vendor: owasp-modsecurity
-
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CVE-2025-52891
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Same weakness: CWE-252
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V. Comments for CVE-2025-54571
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