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I. Basic Information for CVE-2025-40927
Vulnerability Information

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Vulnerability Title
CGI::Simple versions 1.281 and earlier for Perl has a HTTP response splitting flaw
Source: NVD (National Vulnerability Database)
Vulnerability Description
CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw This vulnerability is a confirmed HTTP response splitting flaw in CGI::Simple that allows HTTP response header injection, which can be used for reflected XSS or open redirect under certain conditions. Although some validation exists, it can be bypassed using URL-encoded values, allowing an attacker to inject untrusted content into the response via query parameters. As a result, an attacker can inject a line break (e.g. %0A) into the parameter value, causing the server to split the HTTP response and inject arbitrary headers or even an HTML/JavaScript body, leading to reflected cross-site scripting (XSS), open redirect or other attacks. The issue documented in CVE-2010-4410 https://www.cve.org/CVERecord?id=CVE-2010-4410 is related but the fix was incomplete. Impact By injecting %0A (newline) into a query string parameter, an attacker can: * Break the current HTTP header * Inject a new header or entire body * Deliver a script payload that is reflected in the server’s response That can lead to the following attacks: * reflected XSS * open redirect * cache poisoning * header manipulation
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP头部中CRLF序列转义处理不恰当(HTTP响应分割)
Source: NVD (National Vulnerability Database)
Vulnerability Title
MetaCPAN CGI::Simple 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MetaCPAN CGI::Simple是MetaCPAN基金会的一个Perl的模块。 MetaCPAN CGI::Simple 1.282之前版本存在安全漏洞,该漏洞源于HTTP响应拆分,可能导致反射型跨站脚本或开放重定向。
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
VendorProductAffected VersionsCPESubscribe
MANWARCGI::Simple 0 ~ 1.282 -
II. Public POCs for CVE-2025-40927
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III. Intelligence Information for CVE-2025-40927
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IV. Related Vulnerabilities
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