CVE-2025-50579

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:jc21:nginx_proxy_manager:2.12.3:*:*:*:*:*:*:*", "matchCriteriaId": "FD9AA809-0B52-4788-A88F-B7B9FEFC60D0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A CORS misconfiguration in Nginx Proxy Manager v2.12.3 allows unauthorized domains to access sensitive data, particularly JWT tokens, due to improper validation of the Origin header. This misconfiguration enables attackers to intercept tokens using a simple browser script and exfiltrate them to a remote attacker-controlled server, potentially leading to unauthorized actions within the application."}, {"lang": "es", "value": "Una configuraci\u00f3n incorrecta de CORS en Nginx Proxy Manager v2.12.3 permite que dominios no autorizados accedan a datos confidenciales, en particular tokens JWT, debido a una validaci\u00f3n incorrecta del encabezado Origin. Esta configuraci\u00f3n incorrecta permite a los atacantes interceptar tokens mediante un simple script del navegador y exfiltrarlos a un servidor remoto controlado por el atacante, lo que podr\u00eda provocar acciones no autorizadas dentro de la aplicaci\u00f3n."}], "id": "CVE-2025-50579", "lastModified": "2026-06-17T09:35:10.427", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-50579", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-08-19T19:48:25.696991Z", "version": "2.0.3"}}]}, "published": "2025-08-19T15:15:28.160", "references": [{"source": "cve@mitre.org", "tags": ["Product"], "url": "https://github.com/NginxProxyManager/nginx-proxy-manager"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://github.com/NginxProxyManager/nginx-proxy-manager/issues/4509"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1259"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"created": "2025-08-21T12:59:11.289694+00:00", "updated": "2025-08-21T12:59:11.289745+00:00", "vendors": ["nginxproxymanager", "nginxproxymanager$PRODUCT$nginx_proxy_manager"]}