{"id":"CVE-2023-3550","state":"PUBLISHED","title":"Stored XSS leads to privilege escalation in MediaWiki v1.40.0","description":"Mediawiki v1.40.0 does not validate namespaces used in XML files.\n\nTherefore, if the instance administrator allows XML file uploads,\n\na remote attacker with a low-privileged user account can use this\n\nexploit to become an administrator by sending a malicious link to\n\nthe instance administrator.","publishedAt":"2023-09-25T15:20:27.351Z","updatedAt":"2025-02-13T16:55:50.983Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","source":"Fluid Attacks"},"assigner":"Fluid Attacks","products":["MediaWiki MediaWiki"],"affected":[{"vendor":"MediaWiki","product":"MediaWiki","defaultStatus":"unaffected","versions":[{"version":"1.40.0","status":"affected"}],"platforms":["MacOS"]}],"references":["https://fluidattacks.com/advisories/blondie/","https://www.mediawiki.org/wiki/MediaWiki/","https://www.debian.org/security/2023/dsa-5520","https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/3xxx/CVE-2023-3550.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-3550","state":"PUBLISHED","datePublished":"2023-09-25T15:20:27.351Z","dateUpdated":"2025-02-13T16:55:50.983Z","assignerShortName":"Fluid Attacks","assignerOrgId":"84fe0718-d6bb-4716-a7e8-81a6d1daa869","dateReserved":"2023-07-08T01:02:40.399Z"},"containers":{"cna":{"title":"Stored XSS leads to privilege escalation in MediaWiki v1.40.0","descriptions":[{"lang":"en","value":"Mediawiki v1.40.0 does not validate namespaces used in XML files.\n\nTherefore, if the instance administrator allows XML file uploads,\n\na remote attacker with a low-privileged user account can use this\n\nexploit to become an administrator by sending a malicious link to\n\nthe instance administrator."}],"affected":[{"vendor":"MediaWiki","product":"MediaWiki","defaultStatus":"unaffected","versions":[{"version":"1.40.0","status":"affected"}],"platforms":["MacOS"]}],"references":[{"url":"https://fluidattacks.com/advisories/blondie/"},{"url":"https://www.mediawiki.org/wiki/MediaWiki/"},{"url":"https://www.debian.org/security/2023/dsa-5520"},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Fluid Attacks","orgId":"84fe0718-d6bb-4716-a7e8-81a6d1daa869","dateUpdated":"2024-06-10T16:13:36.593Z"},"datePublic":"2023-10-11T17:00:00.000Z","impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://fluidattacks.com/advisories/blondie/","tags":["x_transferred"]},{"url":"https://www.mediawiki.org/wiki/MediaWiki/","tags":["x_transferred"]},{"url":"https://www.debian.org/security/2023/dsa-5520","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:01:56.435Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-24T15:57:17.402370Z","id":"CVE-2023-3550","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-24T15:57:25.148Z"}}]}}}