CVE-2025-57538 Cross-site scripting in n/a
An authenticated user can inject malicious JavaScript into the HTTP Proxy field, leading to arbitrary code execution in other users' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-57538?
CVE-2025-57538 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-57538?
It affects 1 product.
Products include Proxmox Virtual Environment.
How do I fix CVE-2025-57538?
No fix has been published for CVE-2025-57538 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-57538 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-57538 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v2g2-455f-8x5w.