CVE-2025-3789 baseweb JSite save cross site scripting

Medium 5.1 Published 18 Apr 2025 Updated 18 Apr 2025

Remote attackers can inject malicious scripts via the Name argument in baseweb JSite, potentially compromising user sessions or executing code.

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-2025-3789?

CVE-2025-3789 is a medium-severity cross-site scripting vulnerability in baseweb JSite, published on 18 Apr 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 vulnerability was found in baseweb JSite 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /a/sys/area/save. The manipulation of the argument Name leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-3789?

It affects 1 product.

Products include Jsite Jsite.

How do I fix CVE-2025-3789?

No fix has been published for CVE-2025-3789 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-2025-3789 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3789 exists.

Sources

Also known as GHSA-cf3p-93cf-9wfg.