{"id":"CVE-2026-100377","aliases":["EUVD-2026-87358","GHSA-cmgj-p48r-86gm"],"status":"published","title":"Revision-deleted pages can be viewed through WikiLambda's action=edit and Special:ViewAbstract","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Excavation.\n\nThis issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00324,"percentile":0.25657,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2026-09-25T20:47:36Z","modified":"2026-09-28T16:38:10Z","products":[{"vendor":"the wikimedia foundation","product":"mediawiki - wikilambda extension"},{"vendor":"wikimedia foundation","product":"mediawiki - wikilambda extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T430601"},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1320186"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100377"},{"url":"https://github.com/advisories/GHSA-cmgj-p48r-86gm"}],"sources":{"cve":[{"id":"CVE-2026-100377","title":"Revision-deleted pages can be viewed through WikiLambda's action=edit and Special:ViewAbstract","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Excavation.\n\nThis issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.","status":"published","published":"2026-09-25T20:47:36.756Z","modified":"2026-09-26T22:51:18.721Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-87358","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Excavation.\n\nThis issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.","status":"published","published":"2026-09-25T20:47:36Z","modified":"2026-09-26T22:51:18Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:54.286776Z"}],"ghsa":[{"id":"GHSA-cmgj-p48r-86gm","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 - WikiLambda Extension allows Excavation.\n\nThis issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.","status":"published","published":"2026-09-25T21:33:03Z","modified":"2026-09-25T21:33:12Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:12:27.845198Z"}],"nvd":[{"id":"CVE-2026-100377","description":"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Excavation.\n\nThis issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.","status":"published","published":"2026-09-25T21:17:21.65Z","modified":"2026-09-28T16:38:10.183Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:51.721923Z"}]}}