CVE-2026-2344 Stored XSS on Plunet BusinessManager

High 8.6 Published Updated

Stored XSS in Plunet BusinessManager allows attackers to perform unauthorized actions on behalf of privileged users.

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
None listed

What is CVE-2026-2344?

CVE-2026-2344 is a high-severity cross-site scripting vulnerability in Plunet BusinessManager, published on 11 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability in Plunet Plunet BusinessManager allows unauthorized actions being performed on behalf of privileged users.This issue affects Plunet BusinessManager: 10.15.1

Weakness: CWE-79

Which versions are affected by CVE-2026-2344?

How do I fix CVE-2026-2344?

No fix has been published for CVE-2026-2344 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-2026-2344 being exploited?

There is no known exploitation of CVE-2026-2344 in the wild and no public exploit code.

Sources

Also known as GHSA-qphx-26ch-3x8j.

Is CVE-2026-2344 in your software?

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