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Medium severity · published Sep 9, 2025
CVE-2025-57538
A stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the Datacenter configuration panel of Proxmox Virtual Environment (PVE) 8.4 allows an…
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
A stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the Datacenter configuration panel of Proxmox Virtual Environment (PVE) 8.4 allows an authenticated user to inject malicious input. The input is stored and executed in the context of other users' browsers when they view the affected configuration page. This can lead to arbitrary JavaScript execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VE
Virtual Environment · Proxmox
8.4 · source: NVD
Affected product
VE
Virtual Environment
Proxmox
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-57538
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-57538
Issue Tracking
https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010
Exploit
https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss
Broken Link
https://www.youtube.com/watch?v=mN-0Zia1LZw
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