{"id":"GHSA-pc5g-j9j7-p4q3","summary":"Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation","details":"A Stored Cross-Site Scripting (XSS) vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user creation. The payload is stored unsanitized and later executed when the /ajax/listusers endpoint is accessed.","aliases":["CVE-2025-65858","PYSEC-2026-1234"],"modified":"2026-07-07T17:56:18.981988962Z","published":"2025-12-02T15:30:32Z","database_specific":{"nvd_published_at":"2025-12-02T14:16:25Z","cwe_ids":["CWE-79"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2025-12-02T17:37:08Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-65858"},{"type":"WEB","url":"https://github.com/KhanhDuy155/calibre-web-CVE-2025-65858/blob/main/CVE-2025-65858.md"},{"type":"PACKAGE","url":"https://github.com/janeczku/calibre-web"}],"affected":[{"package":{"name":"calibreweb","ecosystem":"PyPI","purl":"pkg:pypi/calibreweb"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.6.25"}]}],"versions":["0.6.12","0.6.13","0.6.14","0.6.15","0.6.16","0.6.17","0.6.18","0.6.19","0.6.20","0.6.21","0.6.22","0.6.23","0.6.24","0.6.25"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-pc5g-j9j7-p4q3/GHSA-pc5g-j9j7-p4q3.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P"}]}