CVE-2026-1618 Admin Account Takeover in Universal Sotware's FlexCity/Kiosk

High 8.8 Published 13 Feb 2026 Updated 6 Jun 2026

Attackers can bypass authentication to take over admin accounts and escalate privileges in Universal Software's FlexCity/Kiosk.

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-2026-1618?

CVE-2026-1618 is a high-severity authentication bypass vulnerability in Universal Software Inc. FlexCity/Kiosk, published on 13 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Universal Software Inc. FlexCity/Kiosk allows Privilege Escalation.

This issue affects FlexCity/Kiosk: from 1.0 before 1.0.36.

Weakness: CWE-288

Which versions are affected by CVE-2026-1618?

It affects 1 product.

Products include Uni-Yaz Flexcity.

How do I fix CVE-2026-1618?

No fix has been published for CVE-2026-1618 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-1618 being exploited?

There is no known exploitation of CVE-2026-1618 in the wild and no public exploit code.

Sources

Also known as GHSA-4p49-fwp8-38mv.