CVE-2025-55056 Cross-site scripting in FTP Server

Medium 4.8 Published Updated

Cross-site scripting vulnerability in Rumpus FTP Server allows attackers to inject malicious scripts into web pages viewed by other users.

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-2025-55056?

CVE-2025-55056 is a medium-severity cross-site scripting vulnerability in Rumpus FTP Server, published on 17 Nov 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Multiple CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Weakness: CWE-79

Which versions are affected by CVE-2025-55056?

It affects 1 product.

Products include Maxum Rumpus.

How do I fix CVE-2025-55056?

No fix has been published for CVE-2025-55056 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-2025-55056 being exploited?

There is no known exploitation of CVE-2025-55056 in the wild and no public exploit code.

Sources

Also known as GHSA-6r2h-258f-w4jp.

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