{"id":"PYSEC-2026-307","summary":"calibre-web is vulnerable to Business Logic Errors","details":"calibre-web is vulnerable to Business Logic Errors","aliases":["CVE-2021-4171","GHSA-xp7p-3gx7-j6wx"],"modified":"2026-07-01T20:22:50.165947Z","published":"2026-06-29T11:50:33.865743Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4171"},{"type":"WEB","url":"https://github.com/janeczku/calibre-web/commit/3e0d8763c377d2146462811e3e4ccf13f0d312ce"},{"type":"PACKAGE","url":"https://github.com/janeczku/calibre-web"},{"type":"WEB","url":"https://huntr.dev/bounties/1117f439-133c-4563-afb2-6cd80607bd5c"},{"type":"PACKAGE","url":"https://pypi.org/project/calibreweb"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-xp7p-3gx7-j6wx"}],"affected":[{"package":{"name":"calibreweb","ecosystem":"PyPI","purl":"pkg:pypi/calibreweb"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.15"}]}],"versions":["0.6.12","0.6.13","0.6.14"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/calibreweb/PYSEC-2026-307.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}