CVE-2025-47909

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{"affected": [{"affectedData": [{"collectionURL": "https://pkg.go.dev", "defaultStatus": "affected", "packageName": "github.com/gorilla/csrf", "product": "github.com/gorilla/csrf", "programRoutines": [{"name": "TrustedOrigins"}], "vendor": "github.com/gorilla/csrf", "versions": [{"lessThan": "1.7.3", "status": "unaffected", "version": "0", "versionType": "semver"}]}], "source": "security@golang.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Hosts listed in TrustedOrigins implicitly allow requests from the corresponding HTTP origins, allowing network MitMs to perform CSRF attacks. After the CVE-2025-24358 fix, a network attacker that places a form at http://example.com can't get it to submit to https://example.com because the Origin header is checked with sameOrigin against a synthetic URL. However, if a host is added to TrustedOrigins, both its HTTP and HTTPS origins will be allowed, because the schema of the synthetic URL is ignored and only the host is checked. For example, if an application is hosted on https://example.com and adds example.net to TrustedOrigins, a network attacker can serve a form at http://example.net to perform the attack. Applications should migrate to net/http.CrossOriginProtection, introduced in Go 1.25. If that is not an option, a backport is available as a module at filippo.io/csrf, and a drop-in replacement for the github.com/gorilla/csrf API is available at filippo.io/csrf/gorilla."}, {"lang": "es", "value": "Los hosts listados en TrustedOrigins permiten impl\u00edcitamente solicitudes de los or\u00edgenes HTTP correspondientes, permitiendo a los MitM de red realizar ataques CSRF. Despu\u00e9s de la correcci\u00f3n de CVE-2025-24358, un atacante de red que coloca un formulario en http://example.com no puede lograr que se env\u00ede a https://example.com porque el encabezado Origin se verifica con sameOrigin contra una URL sint\u00e9tica. Sin embargo, si se a\u00f1ade un host a TrustedOrigins, se permitir\u00e1n tanto sus or\u00edgenes HTTP como HTTPS, porque el esquema de la URL sint\u00e9tica se ignora y solo se verifica el host. Por ejemplo, si una aplicaci\u00f3n est\u00e1 alojada en https://example.com y a\u00f1ade example.net a TrustedOrigins, un atacante de red puede servir un formulario en http://example.net para realizar el ataque. Las aplicaciones deber\u00edan migrar a net/http.CrossOriginProtection, introducido en Go 1.25. Si esa no es una opci\u00f3n, un backport est\u00e1 disponible como m\u00f3dulo en filippo.io/csrf, y un reemplazo directo para la API de github.com/gorilla/csrf est\u00e1 disponible en filippo.io/csrf/gorilla."}], "id": "CVE-2025-47909", "lastModified": "2026-10-19T17:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-47909", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-08-29T18:22:18.472640Z", "version": "2.0.3"}}]}, "published": "2025-08-29T16:15:35.990", "references": [{"source": "security@golang.org", "url": "https://github.com/golang/vulndb/issues/3884"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2025-3884"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{}