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CVE-2025-57539

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.

POC

Reference

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

Github

No PoCs found on GitHub currently.