{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103050","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","state":"PUBLISHED","assignerShortName":"wikimedia-foundation","dateReserved":"2026-09-29T22:29:40.415Z","datePublished":"2026-09-29T23:11:02.272Z","dateUpdated":"2026-09-30T20:01:03.537Z"},"containers":{"cna":{"providerMetadata":{"orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","shortName":"wikimedia-foundation","dateUpdated":"2026-09-29T23:11:02.272Z"},"title":"Stored i18n XSS in MassMessage","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-79","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"affected":[{"vendor":"The Wikimedia Foundation","product":"Mediawiki - MassMessage extension","repo":"https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/MassMessage/+/refs/heads/master","versions":[{"status":"affected","version":"0","lessThan":"1.46.1, 1.45.5, 1.43.10","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.\n\nThis issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.","supportingMedia":[{"type":"text/html","base64":false,"value":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.<p>This issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.</p>"}]}],"references":[{"url":"https://phabricator.wikimedia.org/T432341","tags":["issue-tracking"]},{"url":"https://gerrit.wikimedia.org/r/c/1346089","tags":["mitigation"]}],"credits":[{"lang":"en","value":"SomeRandomDeveloper","type":"finder"},{"lang":"en","value":"SomeRandomDeveloper","type":"remediation developer"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"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":{"id":"CVE-2026-103050","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-30T18:14:37.088220Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-30T20:01:03.537Z"}}]}}