CVE-2025-57538
Proxmox Virtual Environment (PVE) Stored Cross-Site Scripting (XSS)
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.
INFO
Published Date :
Sept. 9, 2025, 5:16 p.m.
Last Modified :
Sept. 18, 2025, 5:41 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Sanitize all user-supplied input for the HTTP Proxy field.
- Implement context-aware output encoding.
- Update Proxmox Virtual Environment to the latest version.
- Review all input fields for similar vulnerabilities.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-57538.
| URL | Resource |
|---|---|
| https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010 | Vendor Advisory Issue Tracking |
| https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss | Exploit Third Party Advisory |
| https://www.youtube.com/watch?v=mN-0Zia1LZw | Broken Link |
| https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-57538 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-57538
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-57538 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-57538 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 18, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:proxmox:virtual_environment:8.4:*:*:*:*:*:*:* Added Reference Type MITRE: https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010 Types: Issue Tracking, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://www.youtube.com/watch?v=mN-0Zia1LZw Types: Broken Link -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 10, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss -
New CVE Received by [email protected]
Sep. 09, 2025
Action Type Old Value New Value Added 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. Added Reference https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010 Added Reference https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss Added Reference https://www.youtube.com/watch?v=mN-0Zia1LZw