CVE-2025-62595

{"id": "CVE-2025-62595", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62595", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-21T16:35:45.437787Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "koajs", "product": "koa", "versions": [{"status": "affected", "version": ">= 2.16.2, < 2.16.3"}, {"status": "affected", "version": ">= 3.0.1, < 3.0.3"}]}]}], "published": "2025-10-21T17:15:40.737", "references": [{"url": "https://github.com/koajs/koa/commit/769fd75cc6b30d72493b370b5a3ae2332ca03c5b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/koajs/koa/security/advisories/GHSA-g8mr-fgfg-5qpc", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/koajs/koa/security/advisories/GHSA-g8mr-fgfg-5qpc", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-601"}]}], "descriptions": [{"lang": "en", "value": "Koa is expressive middleware for Node.js using ES2017 async functions. In versions 2.16.2 to before 2.16.3 and 3.0.1 to before 3.0.3, a bypass to CVE-2025-8129 was discovered in the Koa.js framework affecting its back redirect functionality. In certain circumstances, an attacker can manipulate the Referer header to force a user\u2019s browser to navigate to an external, potentially malicious website. This occurs because the implementation incorrectly treats some specially crafted URLs as safe relative paths. Exploiting this vulnerability could allow attackers to perform phishing, social engineering, or other redirect-based attacks on users of affected applications. This issue has been patched in version 3.0.3."}, {"lang": "es", "value": "Koa es middleware expresivo para Node.js usando funciones as\u00edncronas ES2017. En las versiones 2.16.2 hasta antes de la 2.16.3 y 3.0.1 hasta antes de la 3.0.3, se descubri\u00f3 un bypass para CVE-2025-8129 en el framework Koa.js que afecta su funcionalidad de redirecci\u00f3n hacia atr\u00e1s. En ciertas circunstancias, un atacante puede manipular el encabezado Referer para forzar al navegador de un usuario a navegar a un sitio web externo, potencialmente malicioso. Esto ocurre porque la implementaci\u00f3n trata incorrectamente algunas URLs especialmente dise\u00f1adas como rutas relativas seguras. Explotar esta vulnerabilidad podr\u00eda permitir a los atacantes realizar phishing, ingenier\u00eda social u otros ataques basados en redirecci\u00f3n en usuarios de aplicaciones afectadas. Este problema ha sido parcheado en la versi\u00f3n 3.0.3."}], "lastModified": "2026-10-08T11:10:00.250", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:koajs:koa:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "4A627ED5-2951-46B1-BFF3-E633EE820936", "versionEndExcluding": "3.0.3", "versionStartIncluding": "3.0.1"}, {"criteria": "cpe:2.3:a:koajs:koa:2.16.2:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "23C668B2-3773-49E0-9274-7C8824F59CB0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}