CVE-2026-25892

{"id": "CVE-2026-25892", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-02-09T22:16:04.023", "references": [{"url": "https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/vrana/adminer/releases/tag/v5.4.2", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, openssl_verify() receives this array instead of string and throws TypeError, returning HTTP 500 to all users. Upgrade to Adminer 5.4.2."}, {"lang": "es", "value": "Adminer es un software de gesti\u00f3n de bases de datos de c\u00f3digo abierto. Adminer v5.4.1 y anteriores tiene un mecanismo de verificaci\u00f3n de versi\u00f3n donde adminer.org env\u00eda informaci\u00f3n de versi\u00f3n firmada a trav\u00e9s de JavaScript postMessage, que el navegador luego env\u00eda por POST a ?script=version. Este endpoint carece de validaci\u00f3n de origen y acepta datos POST de cualquier fuente. Un atacante puede enviar por POST el par\u00e1metro version[] que PHP convierte en un array. En la siguiente carga de p\u00e1gina, openssl_verify() recibe este array en lugar de una cadena y lanza TypeError, devolviendo HTTP 500 a todos los usuarios. Actualice a Adminer 5.4.2."}], "lastModified": "2026-02-20T20:24:32.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A0A483B-178F-44CC-9EB7-C469C1F8C106", "versionEndExcluding": "5.4.2", "versionStartIncluding": "4.6.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}