CVE-2026-90851 PHPGurukul Hostel Management System checklogin.php access control

Medium 5.3 Published Updated

Remote attackers can bypass access controls in the admin login check to gain unauthorized privileges or access sensitive data.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-90851?

CVE-2026-90851 is a medium-severity missing authorization vulnerability in PHPGurukul Hostel Management System, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in PHPGurukul Hostel Management System 3.0. This affects an unknown part of the file /admin/includes/checklogin.php. This manipulation of the argument ID causes improper access controls. Remote exploitation of the attack is possible. The exploit has been published and may be used.

Weakness: CWE-284, CWE-266

Which versions are affected by CVE-2026-90851?

How do I fix CVE-2026-90851?

No fix has been published for CVE-2026-90851 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-2026-90851 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90851 exists.

Sources

Also known as GHSA-fqcp-p9cx-qvwf.

Is CVE-2026-90851 in your software?

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