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.
Affected products
proxmox: virtual environment
References4
- forum.proxmox.com/threads/proxmox-virtual-environment-security-… Issue TrackingVendor Advisory
- github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss ExploitThird Party Advisory
- github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss ExploitThird Party Advisory
- www.youtube.com/watch?v=-wvkN-7oT5U Broken Link
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 22 · as of 8 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
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