What’s Vulnerable › Vulnerabilities

CVE-2025-57538

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-09 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Proxmox Virtual Environment: 8.4

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

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