CVE-2025-22142 Cross-site Scripting in NamelessMC

Medium 6.3 Published 13 Jan 2025 Updated 13 Jan 2025

Attackers can inject JavaScript into user profile fields, executing code on staff members' browsers when viewing profiles in the admin panel.

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

What is CVE-2025-22142?

CVE-2025-22142 is a medium-severity cross-site scripting vulnerability in NamelessMC Nameless, published on 13 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In affected versions an admin can add the ability to have users fill out an additional field and users can inject javascript code into it that would be activated once a staffer visits the user's profile on staff panel. As a result an attacker can execute javascript code on the staffer's computer. This issue has been addressed in version 2.1.3 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2025-22142?

It affects 1 product.

Products include Namelessmc Nameless.

How do I fix CVE-2025-22142?

No fix has been published for CVE-2025-22142 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-2025-22142 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-22142 exists.

Sources

Also known as GHSA-9q22-w64p-g8qm.