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 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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
mitreCNA
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CISA-ADPADP
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10%
VendorProductVersion
proxmoxvirtual_environment
8.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010
https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss
https://www.youtube.com/watch?v=mN-0Zia1LZw
https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss