PYSEC-2026-1234

vendorUSosv

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

view advisory published 2026-07-07Licence: CC-BY-4.0

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-65858US	—	0.21% (11th)	Exploit	2025-12-02
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…

references

External citations — patches, advisories, analysis.

https://github.com/KhanhDuy155/calibre-web-CVE-2025-65858/blob/main/CVE-2025-65858.mdWEB
https://github.com/advisories/GHSA-pc5g-j9j7-p4q3ADVISORY
https://github.com/janeczku/calibre-webPACKAGE
https://nvd.nist.gov/vuln/detail/CVE-2025-65858ADVISORY
https://pypi.org/project/calibrewebPACKAGE

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