CVE-2025-57539

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.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 21th percentile

Published

2025-09-09

Updated

2025-09-10

Proof-of-concept exploits (1)

• khankishiyev-j/bug-bounty/blob/main/proxmox-xss

References

• CVE Record
• NVD entry

Related

• CVE-2025-57538
• CVE-2025-57540
• CVE-2025-57520
• CVE-2025-5755
• CVE-2025-57489
• CVE-2025-5756