CVE-2025-67738 Command injection in Webmin
An authenticated attacker with Cache Manager permissions can execute arbitrary commands via improper argument quoting in the Squid Cache Manager interface.
- 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-2025-67738?
CVE-2025-67738 is a high-severity command injection vulnerability in Webmin, published on 11 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
squid/cachemgr.cgi in Webmin before 2.600 does not properly quote arguments. This is relevant if Webmin's Squid module and its Cache Manager feature are available, and an untrusted party is able to authenticate to Webmin and has certain Cache Manager permissions (the "cms" security option).
Weakness: CWE-78
Which versions are affected by CVE-2025-67738?
How do I fix CVE-2025-67738?
No fix has been published for CVE-2025-67738 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-67738 being exploited?
There is no known exploitation of CVE-2025-67738 in the wild and no public exploit code.
Sources
Also known as GHSA-gq3p-5rgr-j77q.