CVE-2026-100241

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-100241", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-09-25T16:02:34.842Z", "datePublished": "2026-09-29T16:36:22.492Z", "dateUpdated": "2026-09-30T20:46:06.489Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-29T16:36:22.492Z"}, "title": "Private change tags exposed to anonymous users via revision-tags-change events", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-116", "descriptions": [{"lang": "en", "value": "CAPEC-116 Excavation"}]}], "affected": [{"vendor": "Wikimedia Foundation", "product": "Mediawiki - EventBus Extension", "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/EventBus/+/refs/heads/master", "versions": [{"status": "affected", "version": "1.47.0-alpha"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.<p>This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.</p>"}]}], "references": [{"url": "https://phabricator.wikimedia.org/T432948"}, {"url": "https://gerrit.wikimedia.org/r/q/I6d79037edc771fe9a2889c543e12cf7b1296aab8"}], "credits": [{"lang": "en", "value": "kostajh", "type": "finder"}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-30T20:45:45.604285Z", "id": "CVE-2026-100241", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T20:46:06.489Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"title": "Private change tags exposed to anonymous users via revision-tags-change events", "source": {"discovery": "INTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "kostajh"}], "impacts": [{"capecId": "CAPEC-116", "descriptions": [{"lang": "en", "value": "CAPEC-116 Excavation"}]}], "affected": [{"repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/EventBus/+/refs/heads/master", "vendor": "Wikimedia Foundation", "product": "Mediawiki - EventBus Extension", "versions": [{"status": "affected", "version": "1.47.0-alpha"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://phabricator.wikimedia.org/T432948"}, {"url": "https://gerrit.wikimedia.org/r/q/I6d79037edc771fe9a2889c543e12cf7b1296aab8"}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.<p>This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}], "providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-29T16:36:22.492Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-100241", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-30T20:45:45.604285Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-09-30T20:46:01.319Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-100241", "state": "PUBLISHED", "dateUpdated": "2026-09-29T16:36:22.492Z", "dateReserved": "2026-09-25T16:02:34.842Z", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "datePublished": "2026-09-29T16:36:22.492Z", "assignerShortName": "wikimedia-foundation"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mediawiki - EventBus Extension", "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/EventBus/+/refs/heads/master", "vendor": "Wikimedia Foundation", "versions": [{"status": "affected", "version": "1.47.0-alpha"}]}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-100241", "lastModified": "2026-09-30T21:16:53.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-100241", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-30T20:45:45.604285Z", "version": "2.0.3"}}]}, "published": "2026-09-29T17:17:01.113", "references": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://gerrit.wikimedia.org/r/q/I6d79037edc771fe9a2889c543e12cf7b1296aab8"}, {"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://phabricator.wikimedia.org/T432948"}], "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary"}]}

{}

{"created": "2026-09-30T01:00:09.722280+00:00", "updated": "2026-09-30T23:45:09.950942+00:00", "vendors": []}