CVE-2025-4324 MRCMS External Link Management Page edit.do cross site scripting

Medium 4.8 Published Updated

An attacker can inject malicious scripts into the External Link Management Page, potentially compromising user sessions or executing code.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-4324?

CVE-2025-4324 is a medium-severity cross-site scripting vulnerability in MRCMS, published on 6 May 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability, which was classified as problematic, was found in MRCMS 3.1.2. This affects an unknown part of the file /admin/link/edit.do of the component External Link Management Page. The manipulation leads to cross site scripting. It is possible to initiate 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-2025-4324?

It affects 1 product.

Products include Mrcms Mrcms.

How do I fix CVE-2025-4324?

No fix has been published for CVE-2025-4324 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-2025-4324 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4324 exists.

Sources

Also known as GHSA-wjqg-m23v-986j.

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