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CVE-2025-57538

20
FAUCET Score

CVE-2025-57538 is a stored cross-site scripting (XSS) vulnerability affecting Proxmox Virtual Environment (PVE) 8.4. An authenticated attacker can inject malicious JavaScript into the HTTP Proxy field of the Datacenter configuration panel. This input is then executed in the browsers of other users viewing that page, potentially leading to arbitrary code execution. The vulnerability has a CVSS score of 5.4 (MEDIUM), indicating a network-based attack requiring low privileges and user interaction, with low impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
8.4CPE matchmatch criteria
cpe:2.3:a:proxmox:virtual_environment:8.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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 Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 33rd percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

forum.proxmox.com / threads/proxmox-virtual-environment-security-advisories.149331/page-2
Issue TrackingVendor Advisory
github.com / khankishiyev-j/bug-bounty/blob/main/proxmox-xss
ExploitThird Party Advisory
youtube.com / watch
Broken Link