CVE-2025-63419 Cross-site scripting in n/a

Medium 6.1 Published 12 Nov 2025 Updated 12 Nov 2025

An attacker can inject malicious HTML into email bodies via unsanitized filenames in the file sharing feature, potentially compromising user sessions.

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

What is CVE-2025-63419?

CVE-2025-63419 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. The Web-Based Server has a feature where users can share files, the feature reflects the filename to an emailbody field with no sanitations leading to HTML Injection.

Weakness: CWE-79

Which versions are affected by CVE-2025-63419?

It affects 1 product.

Products include Crushftp Crushftp.

How do I fix CVE-2025-63419?

No fix has been published for CVE-2025-63419 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-2025-63419 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63419 exists.

Public exploit code: 2 proofs of concept on GitHub.

Sources

Also known as GHSA-xrhm-vphq-6rxx.