{"id":"CVE-2021-4164","aliases":["GHSA-wxr6-29pv-ch68","PYSEC-2026-621"],"url":"https://o3.security/vulnerability/CVE-2021-4164","summary":"calibre-web is vulnerable to Cross-Site Request Forgery (CSRF)","details":"calibre-web is vulnerable to Cross-Site Request Forgery (CSRF)","published":"2022-01-17T13:15:08.193Z","modified":"2026-07-09T01:07:33.869498Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.0054,"percentile":0.43069,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"calibreweb","fixedVersion":"0.6.15"}],"fix":{"url":"https://github.com/janeczku/calibre-web/commit/785726deee13b4d56f6c3503dd57c1e3eb7d6f30","label":"janeczku/calibre-web@785726d"},"references":[{"type":"FIX","url":"https://github.com/janeczku/calibre-web/commit/785726deee13b4d56f6c3503dd57c1e3eb7d6f30"},{"type":"EVIDENCE","url":"https://huntr.dev/bounties/2debace1-a0f3-45c1-95fa-9d0512680758"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T01:07:33.869498Z"}}