{"id":"PYSEC-2026-620","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')","aliases":["CVE-2021-4170","GHSA-wrp6-9w7f-3wxg"],"modified":"2026-07-06T08:00:10.396603997Z","published":"2026-07-02T14:13:14.959672Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4170"},{"type":"WEB","url":"https://github.com/janeczku/calibre-web/commit/7ad419dc8c12180e842a82118f4866ac3d074bc5"},{"type":"WEB","url":"https://github.com/janeczku/calibre-web"},{"type":"WEB","url":"https://huntr.dev/bounties/ff395101-e392-401d-ab4f-579c63fbf6a0"},{"type":"PACKAGE","url":"https://pypi.org/project/calibreweb"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-wrp6-9w7f-3wxg"}],"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-2026-620.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}