{"id":"CVE-2021-22171","aliases":["BIT-gitlab-2021-22171","EUVD-2021-9317","GHSA-2j76-jpwv-99mp","UBUNTU-CVE-2021-22171"],"status":"published","title":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an...","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01348,"percentile":0.71702,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2021-01-15T15:10:39Z","modified":"2026-10-30T10:30:26Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["13.5.6","13.6.4","13.7.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"11.5.0"},{"fixed":"13.5.6"},{"introduced":"13.6.0"},{"fixed":"13.6.4"},{"introduced":"13.7.0"},{"fixed":"13.7.2"}]}]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab-pages/-/issues/262","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/718460","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22171.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22171","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2j76-jpwv-99mp"},{"url":"https://ubuntu.com/security/CVE-2021-22171","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-22171","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-22171","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2021-01-15T15:10:39Z","modified":"2024-08-03T18:37:18.342Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9317","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2021-01-15T15:10:39Z","modified":"2024-08-03T18:37:18Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:25:03.638882Z"}],"ghsa":[{"id":"GHSA-2j76-jpwv-99mp","title":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an...","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2022-05-24T17:39:23Z","modified":"2023-01-29T05:05:25Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:45:47.324105Z"}],"nvd":[{"id":"CVE-2021-22171","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2021-01-15T16:15:13.517Z","modified":"2026-06-17T03:36:44.18Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:49.284888Z"}],"osv":[{"id":"CVE-2021-22171","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2021-01-15T16:15:13.517Z","modified":"2026-10-30T10:30:26.321513542Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"UBUNTU-CVE-2021-22171","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"withdrawn","published":"2021-01-15T16:15:00Z","modified":"2025-07-16T08:15:30.692362Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:26.29421Z"},{"id":"BIT-gitlab-2021-22171","description":"Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link","status":"published","published":"2024-03-06T11:20:38.404Z","modified":"2026-09-10T16:01:32.425648784Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}