{"cve":"CVE-2025-65858","nvd":{"published":"2025-12-02T14:16:25.233","modified":"2026-06-17T09:56:01.980","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N","score":3.5},"cwes":["CWE-79"],"references":["https://github.com/KhanhDuy155/calibre-web-CVE-2025-65858/blob/main/CVE-2025-65858.md"],"products":["janeczku:calibre-web"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-65858","score":0.00206,"percentile":0.10633,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pc5g-j9j7-p4q3","url":"https://osv.dev/vulnerability/GHSA-pc5g-j9j7-p4q3","summary":"Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation","modified":"2026-07-07T17:56:18.981988962Z","packages":[{"ecosystem":"PyPI","name":"calibreweb","purl":"pkg:pypi/calibreweb","ranges":["<=0.6.25"],"fixed":[]}]},{"id":"PYSEC-2026-1234","url":"https://osv.dev/vulnerability/PYSEC-2026-1234","summary":"Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation","modified":"2026-07-07T17:47:24.624473475Z","packages":[{"ecosystem":"PyPI","name":"calibreweb","purl":"pkg:pypi/calibreweb","ranges":["<=0.6.25"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}