{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103443","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","state":"PUBLISHED","assignerShortName":"wikimedia-foundation","dateReserved":"2026-09-30T15:41:01.270Z","datePublished":"2026-09-30T16:19:16.720Z","dateUpdated":"2026-09-30T20:01:02.840Z"},"containers":{"cna":{"providerMetadata":{"orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","shortName":"wikimedia-foundation","dateUpdated":"2026-09-30T16:19:16.720Z"},"title":"API permits session-seeded javascript URL XSS","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-80","description":"CWE-80 Improper neutralization of Script-Related HTML tags in a web page (basic XSS)","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-18","descriptions":[{"lang":"en","value":"CAPEC-18 XSS Targeting Non-Script Elements"}]}],"affected":[{"vendor":"The Wikimedia Foundation","product":"MediaWiki Collection (Book) extension","repo":"https://gerrit.wikimedia.org/r/mediawiki/extensions/Collection","versions":[{"status":"affected","version":"1.46"},{"status":"affected","version":"1.45"},{"status":"affected","version":"1.43"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Collection (Book) extension allows XSS Targeting Non-Script Elements.\n\nThis issue affects MediaWiki Collection (Book) extension: 1.46, 1.45, and 1.43.","supportingMedia":[{"type":"text/html","base64":false,"value":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Collection (Book) extension allows XSS Targeting Non-Script Elements.<p>This issue affects MediaWiki Collection (Book) extension: 1.46, 1.45, and 1.43.</p>"}]}],"references":[{"url":"https://phabricator.wikimedia.org/T435822"},{"url":"https://gerrit.wikimedia.org/r/q/I51d973d4ace99fb6e584296f296efb0ff50339ce"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"LOW","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NEGLIGIBLE","Automatable":"YES","Recovery":"USER","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER","version":"4.0","baseSeverity":"LOW","baseScore":1.1,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber"}}],"credits":[{"lang":"en","value":"Marco Paciaroni (BomboBombone)","type":"reporter"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-103443","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-30T18:13:04.341673Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-30T20:01:02.840Z"}}]}}