{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-04T07:17:03.957","vulnerabilities":[{"cve":{"id":"CVE-2019-20104","sourceIdentifier":"security@atlassian.com","published":"2020-02-06T03:15:10.123","lastModified":"2024-11-21T04:38:04.280","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability."},{"lang":"es","value":"La aplicación de cliente OpenID en Atlassian Crowd antes de la versión 3.6.2 y desde la versión 3.7.0 anteriores a 3.7.1, permite a atacantes remotos llevar a cabo un ataque de Denegación de Servicio por medio de una vulnerabilidad de tipo XML Entity Expansion."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-776"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionEndExcluding":"3.2.11","matchCriteriaId":"10182807-762F-492A-A74F-AAF659F8B45B"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3.0","versionEndExcluding":"3.3.8","matchCriteriaId":"ACABB443-7E07-4C6F-A32B-DD2F78603E81"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4.0","versionEndExcluding":"3.4.7","matchCriteriaId":"8C438EFF-3115-4932-A8E4-2A3D333C0420"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5.0","versionEndExcluding":"3.5.2","matchCriteriaId":"32363B16-622B-40B2-81FD-891350688619"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6.0","versionEndExcluding":"3.6.2","matchCriteriaId":"F5E26921-D031-47FE-98BA-E0BDF43A1CDD"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6.3","versionEndExcluding":"3.7.1","matchCriteriaId":"ED1160D9-F1BB-4D34-9240-9ECB04C2D19A"},{"vulnerable":true,"criteria":"cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7.2","versionEndExcluding":"4.0.0","matchCriteriaId":"CB431461-C139-4E40-9B50-CEE0EDAE6679"}]}]}],"references":[{"url":"https://jira.atlassian.com/browse/CWD-5526","source":"security@atlassian.com","tags":["Vendor Advisory"]},{"url":"https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/","source":"security@atlassian.com","tags":["Exploit","Technical Description"]},{"url":"https://jira.atlassian.com/browse/CWD-5526","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Technical Description"]}]}}]}