Medium severity5.4NVD Advisory· Published Sep 9, 2025· Updated Jun 17, 2026
CVE-2025-57540
CVE-2025-57540
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.
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Affected products
4cpe:2.3:a:proxmox:virtual_environment:8.4:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:proxmox:virtual_environment:8.4:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 8.4
Patches
Vulnerability mechanics
References
3- github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xssnvdExploitThird Party Advisory
- forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2nvdIssue TrackingVendor Advisory
- www.youtube.com/watchnvdBroken Link
News mentions
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