CVE-2025-40927

{"id": "CVE-2025-40927", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-40927", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-08-29T13:18:01.758812Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "affectedData": [{"repo": "https://github.com/manwar/CGI--Simple", "vendor": "MANWAR", "product": "CGI::Simple", "versions": [{"status": "affected", "version": "0", "lessThan": "1.282", "versionType": "custom"}], "packageName": "CGI-Simple", "programFiles": ["lib/CGI/Simple.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected"}]}], "published": "2025-08-29T01:15:34.553", "references": [{"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-2320", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://datatracker.ietf.org/doc/html/rfc7230#section-3", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://metacpan.org/release/MANWAR/CGI-Simple-1.281/diff/MANWAR/CGI-Simple-1.282/lib/CGI/Simple.pm", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://metacpan.org/release/MANWAR/CGI-Simple-1.281/source/lib/CGI/Simple.pm#L1031-1035", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://owasp.org/www-community/attacks/HTTP_Response_Splitting", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://rt.perl.org/Public/Bug/Display.html?id=21951", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "description": [{"lang": "en", "value": "CWE-113"}]}], "descriptions": [{"lang": "en", "value": "CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw\nThis vulnerability is a confirmed HTTP response splitting\u00a0flaw in CGI::Simple\u00a0that allows HTTP response header injection, which can be used for reflected XSS or open redirect under certain conditions.\n\nAlthough some validation exists, it can be bypassed using URL-encoded values, allowing an attacker to inject untrusted content into the response via query parameters.\n\n\n\nAs 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.\n\nThe issue documented in CVE-2010-4410 https://www.cve.org/CVERecord?id=CVE-2010-4410 is related but the fix was incomplete.\n\nImpact\n\nBy injecting %0A\u00a0(newline) into a query string parameter, an attacker can:\n\n * Break the current HTTP header\n * Inject a new header or entire body\n * Deliver a script payload that is reflected in the server\u2019s response\nThat can lead to the following attacks:\n\n * reflected XSS\n * open redirect\n * cache poisoning\n * header manipulation"}, {"lang": "es", "value": "Las versiones de CGI::Simple anteriores a la 1.282 para Perl tienen una falla de divisi\u00f3n de respuesta HTTP.\nEsta vulnerabilidad es una falla confirmada de divisi\u00f3n de respuesta HTTP en CGI::Simple que permite la inyecci\u00f3n de encabezados de respuesta HTTP, la cual puede usarse para XSS reflejado o redirecci\u00f3n abierta bajo ciertas condiciones.\n\nAunque existe cierta validaci\u00f3n, puede ser evadida usando valores codificados en URL, permitiendo a un atacante inyectar contenido no confiable en la respuesta a trav\u00e9s de par\u00e1metros de consulta.\n\nComo resultado, un atacante puede inyectar un salto de l\u00ednea (por ejemplo, %0A) en el valor del par\u00e1metro, haciendo que el servidor divida la respuesta HTTP e inyecte encabezados arbitrarios o incluso un cuerpo HTML/JavaScript, lo que lleva a cross-site scripting (XSS) reflejado, redirecci\u00f3n abierta u otros ataques.\n\nEl problema documentado en CVE-2010-4410 https://www.cve.org/CVERecord?id=CVE-2010-4410 est\u00e1 relacionado pero la soluci\u00f3n fue incompleta.\n\nImpacto\n\nAl inyectar %0A (salto de l\u00ednea) en un par\u00e1metro de cadena de consulta, un atacante puede:\n\n* Romper el encabezado HTTP actual\n* Inyectar un nuevo encabezado o un cuerpo completo\n* Entregar una carga \u00fatil de script que se refleja en la respuesta del servidor\n\nEso puede llevar a los siguientes ataques:\n\n* XSS reflejado\n* redirecci\u00f3n abierta\n* envenenamiento de cach\u00e9\n* manipulaci\u00f3n de encabezados"}], "lastModified": "2026-10-18T21:10:00.120", "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}