CVE-2026-89176 Howyar|WeenyGenius - Missing Authentication

High 8.7 Published Updated

Unauthenticated attackers can spoof endpoints to gain remote control over student computers, disrupting operations and escalating privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-89176?

CVE-2026-89176 is a high-severity missing authorization vulnerability in Howyar WeenyGenius, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

WeenyGenius, a computer lab management system developed by Howyar Technologies, has a Missing Authentication vulnerability. Unauthenticated attackers on the same network can easily spoof student or teacher endpoints. Impersonating a student can disrupt normal classroom operations, whereas impersonating a teacher can induce student computers to initiate connections, thereby gaining remote control over the student endpoints.

Weakness: CWE-306

Which versions are affected by CVE-2026-89176?

How do I fix CVE-2026-89176?

No fix has been published for CVE-2026-89176 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-89176 being exploited?

There is no known exploitation of CVE-2026-89176 in the wild and no public exploit code.

Sources

Also known as GHSA-mh39-5w93-gwqv.

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