CVE-2025-57539

MEDIUM EPSS 18.2%
Published Sep 9, 20259mo ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Sep 9, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
18.2% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
proxmoxvirtual_environment8.4any

References 3

  • forum.proxmox.com https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010
    Issue TrackingVendor Advisory
  • github.com https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss
    ExploitThird Party Advisory
  • youtube.com https://www.youtube.com/watch?v=-wvkN-7oT5U
    Broken Link

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.