{"id":"CVE-2020-27740","aliases":["EUVD-2020-20244","GHSA-8mh6-v49g-9mfp","UBUNTU-CVE-2020-27740"],"status":"published","title":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users...","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01292,"percentile":0.70664,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-10-28T18:44:30Z","modified":"2026-06-17T03:09:33Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"webcit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.01-dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"webcit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["904-dfsg-1","917-dfsg-1build1","917-dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"webcit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["917-dfsg-3","917-dfsg-4"]}],"products":[{"vendor":"citadel","product":"webcit"}],"references":[{"url":"https://www.citadel.org/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","report"]},{"url":"http://uncensored.citadel.org/readfwd?go=Citadel%20Security?start_reading_at=4592834","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27740"},{"url":"https://github.com/advisories/GHSA-8mh6-v49g-9mfp"},{"url":"https://ubuntu.com/security/CVE-2020-27740","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-27740","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-27740","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","status":"published","published":"2020-10-28T18:44:30Z","modified":"2024-08-04T16:18:45.675Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20244","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","status":"published","published":"2020-10-28T18:44:30Z","modified":"2024-08-04T16:18:45Z","updated_at":"2026-11-03T03:07:11.950168Z"}],"ghsa":[{"id":"GHSA-8mh6-v49g-9mfp","title":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users...","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","status":"published","published":"2022-05-24T17:32:36Z","modified":"2023-01-29T05:05:09Z","updated_at":"2026-11-02T14:45:43.481618Z"}],"nvd":[{"id":"CVE-2020-27740","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","status":"published","published":"2020-10-28T19:15:13.903Z","modified":"2026-06-17T03:09:33.153Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:21.80969Z"}],"osv":[{"id":"UBUNTU-CVE-2020-27740","description":"Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived \"Multiple Security Vulnerabilities in WebCit 926\" thread.","status":"published","published":"2020-10-28T19:15:00Z","modified":"2025-10-24T04:48:51Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:24.541803Z"}]}}