{"api_version":"1","generated_at":"2026-04-23T06:08:32+00:00","cve":"CVE-2021-35197","urls":{"html":"https://cve.report/CVE-2021-35197","api":"https://cve.report/api/cve/CVE-2021-35197.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-35197","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-35197"},"summary":{"title":"CVE-2021-35197","description":"In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a \"sitewide block\" applied, it is able to still \"purge\" pages through the MediaWiki Action API (which a \"sitewide block\" should have prevented).","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-07-02 13:15:00","updated_at":"2023-11-07 03:36:00"},"problem_types":["CWE-863"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/","name":"FEDORA-2021-56d8173b5e","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: mediawiki-1.35.4-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/","name":"FEDORA-2021-3dd1b66cbf","refsource":"","tags":[],"title":"[SECURITY] Fedora 35 Update: mediawiki-1.36.2-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce%40lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/","name":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce%40lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/","refsource":"","tags":[],"title":"Security and maintenance release: 1.31.15 / 1.35.3 / 1.36.1 - MediaWiki-announce - lists.wikimedia.org","mime":"text/html","httpstatus":"200","archivestatus":"403"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/","name":"FEDORA-2021-eee8b7514f","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: mediawiki-1.35.4-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2021/dsa-4979","name":"DSA-4979","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-4979-1 mediawiki","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/","name":"FEDORA-2021-3dd1b66cbf","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 35 Update: mediawiki-1.36.2-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://phabricator.wikimedia.org/T280226","name":"https://phabricator.wikimedia.org/T280226","refsource":"MISC","tags":[],"title":"⚓ T280226 CVE-2021-35197: Blocked users should not be able to issue purges (action=purge)","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/","name":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/","refsource":"CONFIRM","tags":[],"title":"Security and maintenance release: 1.31.15 / 1.35.3 / 1.36.1 - MediaWiki-announce - lists.wikimedia.org","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00003.html","name":"[debian-lts-announce] 20211009 [SECURITY] [DLA 2779-1] mediawiki security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 2779-1] mediawiki security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/","name":"FEDORA-2021-56d8173b5e","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: mediawiki-1.35.4-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/","name":"FEDORA-2021-eee8b7514f","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: mediawiki-1.35.4-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.gentoo.org/glsa/202107-40","name":"GLSA-202107-40","refsource":"GENTOO","tags":[],"title":"MediaWiki: Multiple vulnerabilities (GLSA 202107-40) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-35197","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35197","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"11.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"35","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"35197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mediawiki","cpe5":"mediawiki","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-35197","qid":"178814","title":"Debian Security Update for mediawiki (DSA 4979-1)"},{"cve":"CVE-2021-35197","qid":"178834","title":"Debian Security Update for mediawiki (DLA 2779-1)"},{"cve":"CVE-2021-35197","qid":"183574","title":"Debian Security Update for mediawiki (CVE-2021-35197)"},{"cve":"CVE-2021-35197","qid":"281976","title":"Fedora Security Update for mediawiki (FEDORA-2021-56d8173b5e)"},{"cve":"CVE-2021-35197","qid":"281977","title":"Fedora Security Update for mediawiki (FEDORA-2021-eee8b7514f)"},{"cve":"CVE-2021-35197","qid":"710029","title":"Gentoo Linux MediaWiki Multiple vulnerabilities (GLSA 202107-40)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-35197","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a \"sitewide block\" applied, it is able to still \"purge\" pages through the MediaWiki Action API (which a \"sitewide block\" should have prevented)."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://phabricator.wikimedia.org/T280226","refsource":"MISC","name":"https://phabricator.wikimedia.org/T280226"},{"refsource":"CONFIRM","name":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/","url":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/"},{"refsource":"GENTOO","name":"GLSA-202107-40","url":"https://security.gentoo.org/glsa/202107-40"},{"refsource":"DEBIAN","name":"DSA-4979","url":"https://www.debian.org/security/2021/dsa-4979"},{"refsource":"MLIST","name":"[debian-lts-announce] 20211009 [SECURITY] [DLA 2779-1] mediawiki security update","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00003.html"},{"refsource":"FEDORA","name":"FEDORA-2021-eee8b7514f","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/"},{"refsource":"FEDORA","name":"FEDORA-2021-56d8173b5e","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/"},{"refsource":"FEDORA","name":"FEDORA-2021-3dd1b66cbf","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/"}]}},"nvd":{"publishedDate":"2021-07-02 13:15:00","lastModifiedDate":"2023-11-07 03:36:00","problem_types":["CWE-863"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*","versionStartIncluding":"1.36.0","versionEndExcluding":"1.36.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*","versionStartIncluding":"1.32.0","versionEndExcluding":"1.35.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*","versionEndExcluding":"1.31.15","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"35197","Ordinal":"210687","Title":"CVE-2021-35197","CVE":"CVE-2021-35197","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"35197","Ordinal":"1","NoteData":"In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a \"sitewide block\" applied, it is able to still \"purge\" pages through the MediaWiki Action API (which a \"sitewide block\" should have prevented).","Type":"Description","Title":null},{"CveYear":"2021","CveId":"35197","Ordinal":"2","NoteData":"2021-07-02","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"35197","Ordinal":"3","NoteData":"2021-10-29","Type":"Other","Title":"Modified"}]}}}