CVE-2025-57539

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 51/100
Published: 2025-09-09 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Changed
C: Low
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
proxmox virtual_environment 8.4

Bug Bounty Relevance

51 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.30%
Raw Score 0.003040
Percentile 23.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00304
2026-11-12
0.00304
2026-11-10
0.00304
2026-11-09
0.00304
2026-11-08
0.00292
2026-11-07
0.00292

Intelligence Sources

nvd ref →