CVE-2025-65621 Snipe-IT is vulnerable to stored cross-site scripting

Medium 5.4 Published Updated

Low-privileged users can inject JavaScript into Snipe-IT to execute code in administrator sessions, leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-65621?

CVE-2025-65621 is a medium-severity cross-site scripting vulnerability in Snipeitapp Snipe-It, published on 1 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Snipe-IT before 8.3.4 allows stored XSS, allowing a low-privileged authenticated user to inject JavaScript that executes in an administrator's session, enabling privilege escalation.

Weakness: CWE-79, CWE-269

Which versions are affected by CVE-2025-65621?

2 open source packages ship an affected version, including snipe/snipe-it. It affects 1 product.

PackageAffectedFixed in
snipe/snipe-it PackagistAll versions8.3.4
snipe/snipe-it PackagistAll versions8.3.4

Products include Snipeitapp Snipe-It.

How do I fix CVE-2025-65621?

Upgrade snipe/snipe-it to 8.3.4 or later.

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-2025-65621 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-65621 exists.

All Snipeitapp Snipe-It vulnerabilities

Sources

Also known as GHSA-fww5-m9wc-jcjc.

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