{"id":"CVE-2021-4170","aliases":["GHSA-wrp6-9w7f-3wxg","PYSEC-2026-620"],"url":"https://o3.security/vulnerability/CVE-2021-4170","summary":"calibre-web is vulnerable to Cross-site Scripting","details":"calibre-web is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","published":"2022-01-16T21:15:07.900Z","modified":"2026-07-09T05:45:17.097547Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"calibreweb","fixedVersion":"0.6.15"}],"fix":{"url":"https://github.com/janeczku/calibre-web/commit/7ad419dc8c12180e842a82118f4866ac3d074bc5","label":"janeczku/calibre-web@7ad419d"},"references":[{"type":"FIX","url":"https://github.com/janeczku/calibre-web/commit/7ad419dc8c12180e842a82118f4866ac3d074bc5"},{"type":"EVIDENCE","url":"https://huntr.dev/bounties/ff395101-e392-401d-ab4f-579c63fbf6a0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:45:17.097547Z"}}