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Description

A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4. Authenticated users can inject JavaScript code that is later executed in the browsers of users who view the configuration page, enabling client-side attacks.

PUBLISHED Reserved 2025-08-17 | Published 2025-09-09 | Updated 2025-09-10 | Assigner mitre

References

github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss

www.youtube.com/watch?v=-wvkN-7oT5U

forum.proxmox.com/...nment-security-advisories.149331/page-2

cve.org (CVE-2025-57540)

nvd.nist.gov (CVE-2025-57540)

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