{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-46721", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-04-28T20:56:09.084Z", "datePublished": "2025-05-13T15:29:30.068Z", "dateUpdated": "2025-05-13T19:07:23.093Z"}, "containers": {"cna": {"title": "nosurf vulnerable to CSRF due to non-functional same-origin request checks", "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery (CSRF)", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/justinas/nosurf/security/advisories/GHSA-w9hf-35q4-vcjw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/justinas/nosurf/security/advisories/GHSA-w9hf-35q4-vcjw"}, {"name": "https://github.com/justinas/nosurf/commit/ec9bb776d8e5ba9e906b6eb70428f4e7b009feee", "tags": ["x_refsource_MISC"], "url": "https://github.com/justinas/nosurf/commit/ec9bb776d8e5ba9e906b6eb70428f4e7b009feee"}, {"name": "https://github.com/advisories/GHSA-rq77-p4h8-4crw", "tags": ["x_refsource_MISC"], "url": "https://github.com/advisories/GHSA-rq77-p4h8-4crw"}, {"name": "https://github.com/justinas/nosurf-cve-2025-46721", "tags": ["x_refsource_MISC"], "url": "https://github.com/justinas/nosurf-cve-2025-46721"}, {"name": "https://github.com/justinas/nosurf/releases/tag/v1.2.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/justinas/nosurf/releases/tag/v1.2.0"}], "affected": [{"vendor": "justinas", "product": "nosurf", "versions": [{"version": "< 1.2.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-05-13T15:29:30.068Z"}, "descriptions": [{"lang": "en", "value": "nosurf is cross-site request forgery (CSRF) protection middleware for Go. A vulnerability in versions prior to 1.2.0 allows an attacker who controls content on the target site, or on a subdomain of the target site (either via XSS, or otherwise) to bypass CSRF checks and issue requests on user's behalf. Due to misuse of the Go `net/http` library, nosurf categorizes all incoming requests as plain-text HTTP requests, in which case the `Referer` header is not checked to have the same origin as the target webpage. If the attacker has control over HTML contents on either the target website (e.g. `example.com`), or on a website hosted on a subdomain of the target (e.g. `attacker.example.com`), they will also be able to manipulate cookies set for the target website. By acquiring the secret CSRF token from the cookie, or overriding the cookie with a new token known to the attacker, `attacker.example.com` is able to craft cross-site requests to `example.com`. A patch for the issue was released in nosurf 1.2.0. In lieu of upgrading to a patched version of nosurf, users may additionally use another HTTP middleware to ensure that a non-safe HTTP request is coming from the same origin (e.g. by requiring a `Sec-Fetch-Site: same-origin` header in the request)."}], "source": {"advisory": "GHSA-w9hf-35q4-vcjw", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/advisories/GHSA-rq77-p4h8-4crw", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-13T19:07:19.880514Z", "id": "CVE-2025-46721", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-13T19:07:23.093Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nosurf_project:nosurf:*:*:*:*:*:go:*:*", "matchCriteriaId": "C2513CBF-78BE-420F-9448-6C4226E36EC9", "versionEndExcluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "nosurf is cross-site request forgery (CSRF) protection middleware for Go. A vulnerability in versions prior to 1.2.0 allows an attacker who controls content on the target site, or on a subdomain of the target site (either via XSS, or otherwise) to bypass CSRF checks and issue requests on user's behalf. Due to misuse of the Go `net/http` library, nosurf categorizes all incoming requests as plain-text HTTP requests, in which case the `Referer` header is not checked to have the same origin as the target webpage. If the attacker has control over HTML contents on either the target website (e.g. `example.com`), or on a website hosted on a subdomain of the target (e.g. `attacker.example.com`), they will also be able to manipulate cookies set for the target website. By acquiring the secret CSRF token from the cookie, or overriding the cookie with a new token known to the attacker, `attacker.example.com` is able to craft cross-site requests to `example.com`. A patch for the issue was released in nosurf 1.2.0. In lieu of upgrading to a patched version of nosurf, users may additionally use another HTTP middleware to ensure that a non-safe HTTP request is coming from the same origin (e.g. by requiring a `Sec-Fetch-Site: same-origin` header in the request)."}, {"lang": "es", "value": "nosurf es un middleware de protecci\u00f3n contra cross-site request forgery (CSRF) para Go. Una vulnerabilidad en versiones anteriores a la 1.2.0 permite a un atacante que controla el contenido del sitio web objetivo o de un subdominio del mismo (ya sea mediante XSS o de otro modo) eludir las comprobaciones CSRF y emitir solicitudes en nombre del usuario. Debido al uso indebido de la librer\u00eda `net/http` de Go, nosurf categoriza todas las solicitudes entrantes como solicitudes HTTP de texto plano, en cuyo caso no se comprueba que el encabezado `Referer` tenga el mismo origen que la p\u00e1gina web objetivo. Si el atacante controla el contenido HTML del sitio web objetivo (p. ej., `example.com`) o de un sitio web alojado en un subdominio del sitio objetivo (p. ej., `attacker.example.com`), tambi\u00e9n podr\u00e1 manipular las cookies configuradas para el sitio web objetivo. Al obtener el token CSRF secreto de la cookie o sobrescribirla con un nuevo token conocido por el atacante, `attacker.example.com` puede generar solicitudes entre sitios a `example.com`. Se public\u00f3 una correcci\u00f3n para este problema en nosurf 1.2.0. En lugar de actualizar a una versi\u00f3n parcheada de nosurf, los usuarios pueden usar otro middleware HTTP para garantizar que una solicitud HTTP no segura provenga del mismo origen (por ejemplo, al requerir un encabezado `Sec-Fetch-Site: same-origin` en la solicitud)."}], "id": "CVE-2025-46721", "lastModified": "2025-06-23T14:55:07.967", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-05-13T16:15:31.750", "references": [{"source": "security-advisories@github.com", "tags": ["Not Applicable"], "url": "https://github.com/advisories/GHSA-rq77-p4h8-4crw"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/justinas/nosurf-cve-2025-46721"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/justinas/nosurf/commit/ec9bb776d8e5ba9e906b6eb70428f4e7b009feee"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/justinas/nosurf/releases/tag/v1.2.0"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/justinas/nosurf/security/advisories/GHSA-w9hf-35q4-vcjw"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Not Applicable"], "url": "https://github.com/advisories/GHSA-rq77-p4h8-4crw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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