CVE-2026-3764 SourceCodester Client Database Management System superadmin_user_update.php improper authorization

Medium 6.9 Published 8 Mar 2026 Updated 10 Mar 2026

Remote attackers can exploit improper authorization in superadmin_user_update.php to modify user data or escalate privileges.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-3764?

CVE-2026-3764 is a medium-severity missing authorization vulnerability in SourceCodester Client Database Management System, published on 8 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was determined in SourceCodester Client Database Management System 1.0. The impacted element is an unknown function of the file /superadmin_user_update.php. This manipulation causes improper authorization. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-285, CWE-266

Which versions are affected by CVE-2026-3764?

It affects 1 product.

Products include Lerouxyxchire Client Database Management System.

How do I fix CVE-2026-3764?

No fix has been published for CVE-2026-3764 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-2026-3764 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3764 exists.

Sources

Also known as GHSA-h82f-3qc4-wmjf.