{"api_version":"1","generated_at":"2026-05-06T21:38:06+00:00","cve":"CVE-2020-29450","urls":{"html":"https://cve.report/CVE-2020-29450","api":"https://cve.report/api/cve/CVE-2020-29450.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-29450","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-29450"},"summary":{"title":"CVE-2020-29450","description":"Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.","state":"PUBLIC","assigner":"security@atlassian.com","published_at":"2021-01-19 01:15:00","updated_at":"2022-08-30 22:42:00"},"problem_types":["CWE-434"],"metrics":[],"references":[{"url":"https://jira.atlassian.com/browse/CONFSERVER-60854","name":"https://jira.atlassian.com/browse/CONFSERVER-60854","refsource":"MISC","tags":["Vendor Advisory"],"title":"[CONFSERVER-60854] DoS by uploading a lot of data for avatars in Confluence - CVE-2020-29450 - Create and track feature requests for Atlassian products.","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-29450","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-29450","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"confluence","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"confluence","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"confluence_data_center","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"confluence_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"data_center","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"29450","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"atlassian","cpe5":"data_center","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@atlassian.com","DATE_PUBLIC":"2020-01-07T00:00:00","ID":"CVE-2020-29450","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Confluence Server","version":{"version_data":[{"version_value":"7.2.0","version_affected":"<"}]}}]},"vendor_name":"Atlassian"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Denial of Service"}]}]},"references":{"reference_data":[{"url":"https://jira.atlassian.com/browse/CONFSERVER-60854","refsource":"MISC","name":"https://jira.atlassian.com/browse/CONFSERVER-60854"}]}},"nvd":{"publishedDate":"2021-01-19 01:15:00","lastModifiedDate":"2022-08-30 22:42:00","problem_types":["CWE-434"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"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:atlassian:confluence_server:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.0","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"29450","Ordinal":"192516","Title":"CVE-2020-29450","CVE":"CVE-2020-29450","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"29450","Ordinal":"1","NoteData":"Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"29450","Ordinal":"2","NoteData":"2021-01-18","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"29450","Ordinal":"3","NoteData":"2021-01-18","Type":"Other","Title":"Modified"}]}}}