CVE-2025-40670 Incorrect Authorization vulnerability in TCMAN GIM

High 7.1 Published 9 Jun 2025 Updated 9 Jun 2025

An unprivileged attacker can create users with elevated privileges via an unprotected API endpoint in TCMAN GIM.

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-2025-40670?

CVE-2025-40670 is a high-severity missing authorization vulnerability in TCMAN GIM, published on 9 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Incorrect authorization vulnerability in TCMAN's GIM v11. This vulnerability allows an unprivileged attacker to create a user and assign it many privileges by sending a POST request to /PC/frmGestionUser.aspx/updateUser.

Weakness: CWE-863

Which versions are affected by CVE-2025-40670?

It affects 1 product.

Products include Tcman Gim.

How do I fix CVE-2025-40670?

No fix has been published for CVE-2025-40670 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-2025-40670 being exploited?

There is no known exploitation of CVE-2025-40670 in the wild and no public exploit code.

Sources

Also known as GHSA-jw8p-xr8r-2w5h.