{"id":"CVE-2026-0670","state":"PUBLISHED","title":"Stored XSS through a system message and a user-provided parameter in ProofreadPage","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.","publishedAt":"2026-01-07T18:55:42.559Z","updatedAt":"2026-01-07T19:25:36.796Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"wikimedia-foundation","products":["Wikimedia Foundation MediaWiki - ProofreadPage Extension"],"affected":[{"vendor":"Wikimedia Foundation","product":"MediaWiki - ProofreadPage Extension","defaultStatus":"unaffected","versions":[{"version":"1.45","status":"affected"},{"version":"1.44","status":"affected"},{"version":"1.43","status":"affected"},{"version":"1.39","status":"affected"}],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/ProofreadPage"}],"references":["https://phabricator.wikimedia.org/T409423","https://gerrit.wikimedia.org/r/q/I7c028db5ed81843aacd596b0ee4dc2980f5b6e3c"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/0xxx/CVE-2026-0670.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0670","state":"PUBLISHED","datePublished":"2026-01-07T18:55:42.559Z","dateUpdated":"2026-01-07T19:25:36.796Z","assignerShortName":"wikimedia-foundation","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateReserved":"2026-01-07T16:35:04.806Z"},"containers":{"cna":{"title":"Stored XSS through a system message and a user-provided parameter in ProofreadPage","descriptions":[{"lang":"en","value":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39."}],"affected":[{"vendor":"Wikimedia Foundation","product":"MediaWiki - ProofreadPage Extension","defaultStatus":"unaffected","versions":[{"version":"1.45","status":"affected"},{"version":"1.44","status":"affected"},{"version":"1.43","status":"affected"},{"version":"1.39","status":"affected"}],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/ProofreadPage"}],"references":[{"url":"https://phabricator.wikimedia.org/T409423"},{"url":"https://gerrit.wikimedia.org/r/q/I7c028db5ed81843aacd596b0ee4dc2980f5b6e3c"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"wikimedia-foundation","orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateUpdated":"2026-01-07T18:55:42.559Z"},"credits":[{"lang":"en","type":"finder","value":"SomeRandomDeveloper"}],"impacts":[{"capecId":"CAPEC-63","descriptions":[{"lang":"en","value":"CAPEC-63 Cross-Site Scripting (XSS)"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"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"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-07T19:24:45.370321Z","id":"CVE-2026-0670","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-07T19:25:36.796Z"}}]}}}