{"id":"CVE-2020-13335","aliases":["BIT-gitlab-2020-13335","EUVD-2020-5595","GHSA-jcwq-43pm-wp74","UBUNTU-CVE-2020-13335"],"status":"published","title":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user...","description":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user to delete own account without deleting/transferring their group.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00802,"percentile":0.57002,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-863"],"published":"2020-10-07T13:03:23Z","modified":"2026-10-30T10:30:46Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["13.2.10","13.3.7","13.4.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"7.12.0"},{"fixed":"13.2.10"},{"introduced":"13.3.0"},{"fixed":"13.3.7"},{"introduced":"13.4.0"},{"fixed":"13.4.2"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/27231","tags":["x_refsource_MISC","x_transferred","Broken Link","Vendor Advisory","advisory","report"]},{"url":"https://hackerone.com/reports/503823","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13335.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13335","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jcwq-43pm-wp74"},{"url":"https://ubuntu.com/security/CVE-2020-13335","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-13335","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-13335","description":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user to delete own account without deleting/transferring their 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group.","status":"published","published":"2020-10-07T14:15:11.67Z","modified":"2026-06-17T02:52:58.707Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:06:17.70091Z"}],"osv":[{"id":"CVE-2020-13335","description":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user to delete own account without deleting/transferring their group.","status":"published","published":"2020-10-07T14:15:11.67Z","modified":"2026-10-30T10:30:46.688951484Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"UBUNTU-CVE-2020-13335","description":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user to delete own account without deleting/transferring their group.","status":"published","published":"2020-10-07T14:15:00Z","modified":"2025-10-24T04:48:30Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:22.804634Z"},{"id":"BIT-gitlab-2020-13335","description":"Improper group membership validation when deleting a user account in GitLab \u003e=7.12 allows a user to delete own account without deleting/transferring their group.","status":"published","published":"2024-03-06T11:21:54.786Z","modified":"2026-09-08T08:47:36.964168854Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}