CVE-2025-57539
Medium
Description
A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the Datacenter configuration in Proxmox Virtual Environment (PVE) 8.4 allows authenticated users to store malicious input. The payload is rendered unsafely in the Web UI and executed when viewed by other users, potentially leading to session hijacking or other attacks.
SeverityMedium
CVSS5.4
Exploit probability—
ProductProxmox Virtual Environment
PublishedSep 9, 2025
First seenSep 9, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| proxmox virtual_environment | 8.4 | — |
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