Show plain JSON{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://phabricator.wikimedia.org/T275669", "name": "https://phabricator.wikimedia.org/T275669", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024", "name": "https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-428"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-31553", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 4.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 3.9}}, "publishedDate": "2021-04-22T03:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.35.2"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-04-22T20:14Z"} 
