CVE-2025-4000 Seeyon Zhiyuan OA Web Application System ssoproxy.jsp cross site scripting

Medium 5.1 Published 28 Apr 2025 Updated 28 Apr 2025

Remote attackers can inject malicious scripts via the Name argument in ssoproxy.jsp, potentially leading to session hijacking or code execution.

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-2025-4000?

CVE-2025-4000 is a medium-severity cross-site scripting vulnerability in Seeyon Zhiyuan OA Web Application System, published on 28 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, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. Affected is an unknown function of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-4000?

It affects 1 product.

Products include Seeyon Oa Web Application System.

How do I fix CVE-2025-4000?

No fix has been published for CVE-2025-4000 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-2025-4000 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4000 exists.

Sources

Also known as GHSA-77p7-m99m-4g5r.