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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "matchCriteriaId": "036C9229-D482-46F2-BA8C-A6800E5CFD1C", "versionEndExcluding": "1.34.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in the FileImporter extension for MediaWiki before 1.34.4. An attacker can import a file even when the target page is protected against \"page creation\" and the attacker should not be able to create it. This occurs because of a mishandled distinction between an upload restriction and a create restriction. An attacker cannot leverage this to overwrite anything, but can leverage this to force a wiki to have a page with a disallowed title."}, {"lang": "es", "value": "Se detect\u00f3 un problema en la extensi\u00f3n FileImporter para MediaWiki versiones anteriores a 1.34.4. Un atacante puede importar un archivo incluso cuando la p\u00e1gina de destino est\u00e1 protegida contra \"page creation\" y el atacante no deber\u00eda poder crearlo. Esto ocurre debido a una distinci\u00f3n manejada inapropiadamente entre una restricci\u00f3n de carga y una restricci\u00f3n de creaci\u00f3n. Un atacante no puede aprovechar esto para sobrescribir cualquier cosa, pero puede aprovechar esto para obligar a un wiki a tener una p\u00e1gina con un t\u00edtulo no permitido"}], "id": "CVE-2020-26121", "lastModified": "2023-11-07T03:20:30.320", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-09-27T21:15:13.063", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://commons.wikimedia.org/w/index.php?oldid=454609892#File:Wiki.png"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://phabricator.wikimedia.org/T262628"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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