CVE-2025-40668 Incorrect Authorization vulnerability in TCMAN GIM
Low-privilege attackers can change other users' passwords via a specific POST request, leading to account takeover.
- 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-2025-40668?
CVE-2025-40668 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 attacker, with low privilege level, to change the password of other users through a POST request using the parameters idUser, PasswordActual, PasswordNew and PasswordNewRepeat in /PC/WebService.aspx/validateChangePassword%C3%B1a. To exploit the vulnerability the PasswordActual parameter must be empty.
Weakness: CWE-863
Which versions are affected by CVE-2025-40668?
It affects 1 product.
Products include Tcman Gim.
How do I fix CVE-2025-40668?
No fix has been published for CVE-2025-40668 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-2025-40668 being exploited?
There is no known exploitation of CVE-2025-40668 in the wild and no public exploit code.
Other vulnerabilities in TCMAN GIM
Sources
Also known as GHSA-w29c-vpjf-6hx4.