CVE-2025-57540
Last modified
CVE-2025-57540 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4. Authenticated users can inject JavaScript code that is later executed in the browsers of users who view the configuration page, enabling client-side attacks.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4. Authenticated users can inject JavaScript code that is later executed in the browsers of users who view the configuration page, enabling client-side attacks.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Proxmox | Virtual Environment | 8.4 |
References
- https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010Issue Tracking, Vendor Advisory
- https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xssExploit, Third Party Advisory
- https://www.youtube.com/watch?v=-wvkN-7oT5UBroken Link
- https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xssExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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