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CVE-2025-40927
HIGH · CVSS 7.3
EPSS exploitation probability: 0%
Published 2025-08-29T01:15:34.553 · Last modified 2026-06-17T09:22:18.517

Summary

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

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.