{"id":"CVE-2026-100241","aliases":["EUVD-2026-89071","GHSA-hm8p-x35f-6gwh"],"status":"published","title":"Private change tags exposed to anonymous users via revision-tags-change events","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.\n\nThis issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00314,"percentile":0.24551,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2026-09-29T16:36:22Z","modified":"2026-09-30T21:31:59Z","products":[{"vendor":"wikimedia foundation","product":"mediawiki - eventbus extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T432948"},{"url":"https://gerrit.wikimedia.org/r/q/I6d79037edc771fe9a2889c543e12cf7b1296aab8"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100241"},{"url":"https://github.com/advisories/GHSA-hm8p-x35f-6gwh"}],"sources":{"cve":[{"id":"CVE-2026-100241","title":"Private change tags exposed to anonymous users via revision-tags-change events","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.\n\nThis issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.","status":"published","published":"2026-09-29T16:36:22.492Z","modified":"2026-09-30T20:46:06.489Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:20:06.562031Z"}],"euvd":[{"id":"EUVD-2026-89071","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.\n\nThis issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.","status":"published","published":"2026-09-29T16:36:22Z","modified":"2026-09-30T20:46:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:47.293232Z"}],"ghsa":[{"id":"GHSA-hm8p-x35f-6gwh","title":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation...","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.\n\nThis issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.","status":"published","published":"2026-09-29T18:31:46Z","modified":"2026-09-30T21:31:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:12:38.770231Z"}],"nvd":[{"id":"CVE-2026-100241","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.\n\nThis issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.","status":"published","published":"2026-09-29T17:17:01.113Z","modified":"2026-09-30T21:16:53.14Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:52.413234Z"}]}}