CVE-2025-65858: Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation

December 2, 2025

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.

References

github.com/KhanhDuy155/calibre-web-CVE-2025-65858/blob/main/CVE-2025-65858.md
github.com/advisories/GHSA-pc5g-j9j7-p4q3
github.com/janeczku/calibre-web
nvd.nist.gov/vuln/detail/CVE-2025-65858

Code Behaviors & Features

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