{"id":"CVE-2026-103050","title":"Stored i18n XSS in MassMessage","summary":"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: be…","severity":"none","cwe":["CWE-79"],"vendor":"The Wikimedia Foundation","product":"Mediawiki - MassMessage extension","affected":["mediawiki_-_massmessage_extension < 1.46.1, 1.45.5, 1.43.10"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T23:11:02.272Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103050","references":[{"url":"https://phabricator.wikimedia.org/T432341"},{"url":"https://gerrit.wikimedia.org/r/c/1346089"}],"tags":["cve.org"],"ingestedAt":"2026-09-29T23:52:50.546Z","slug":"CVE-2026-103050","body":"## Overview\n\nImproper 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.\n\n## Affected\n\n- `mediawiki_-_massmessage_extension < 1.46.1, 1.45.5, 1.43.10`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}