CVE-2024-12503 ClassCMS Model Management Page admin cross site scripting

Medium 5.1 Published 12 Dec 2024 Updated 12 Dec 2024

Remote attackers can inject malicious scripts via the URL argument in the admin Model Management Page, potentially compromising admin sessions.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-12503?

CVE-2024-12503 is a medium-severity cross-site scripting vulnerability in ClassCMS, published on 12 Dec 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability classified as problematic was found in ClassCMS 4.8. Affected by this vulnerability is an unknown functionality of the file /index.php/admin of the component Model Management Page. The manipulation of the argument URL leads to cross site scripting. The attack can 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-2024-12503?

It affects 1 product.

Products include Classcms Classcms.

How do I fix CVE-2024-12503?

No fix has been published for CVE-2024-12503 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-2024-12503 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-12503 exists.

Sources

Also known as GHSA-p964-4w2r-7927.