{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-40927", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2025-04-16T09:05:34.362Z", "datePublished": "2025-08-29T00:10:07.161Z", "dateUpdated": "2025-08-29T13:18:32.704Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "CGI-Simple", "product": "CGI::Simple", "programFiles": ["lib/CGI/Simple.pm"], "repo": "https://github.com/manwar/CGI--Simple", "vendor": "MANWAR", "versions": [{"lessThan": "1.282", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Maxim Kosenko"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw<br><p>This vulnerability is a <strong>confirmed HTTP response splitting</strong>&nbsp;flaw in <code>CGI::Simple</code>&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">that allows HTTP response header injection, which can be used for reflected XSS or open redirect under certain conditions</span>.</p><p>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.</p><p></p><p>As a result, an attacker can inject a line break (e.g. <code>%0A</code>) 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.</p><p>The issue documented in&nbsp;<a target=\"_blank\" rel=\"nofollow\" href=\"https://www.cve.org/CVERecord?id=CVE-2010-4410\">CVE-2010-4410</a><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;is related but the fix was 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