{"id":"CVE-2021-3944","aliases":["GHSA-wc7v-77jr-5c3m"],"url":"https://o3.security/vulnerability/CVE-2021-3944","summary":"bookstack is vulnerable to Cross-Site Request Forgery (CSRF)","details":"bookstack is vulnerable to Cross-Site Request Forgery (CSRF)","published":"2021-12-02T17:15:08.140Z","modified":"2026-08-07T17:02:42.895922Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"ssddanbrown/bookstack","fixedVersion":"21.11"}],"fix":{"url":"https://github.com/bookstackapp/bookstack/commit/88e6f93abf54192a69cc8080e0dc6516ee68ccbb","label":"bookstackapp/bookstack@88e6f93"},"references":[{"type":"FIX","url":"https://github.com/bookstackapp/bookstack/commit/88e6f93abf54192a69cc8080e0dc6516ee68ccbb"},{"type":"FIX","url":"https://huntr.dev/bounties/65551490-5ade-49aa-8b8d-274c2ca9fdc9"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:02:42.895922Z"}}