CVE-2023-53945 BrainyCP 1.0 Remote Code Execution via Authenticated Crontab Manipulation
Authenticated attackers can inject arbitrary commands via the crontab interface to execute remote code and spawn reverse shells.
- 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-2023-53945?
CVE-2023-53945 is a high-severity command injection vulnerability in BrainyCP, published on 19 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
BrainyCP 1.0 contains an authenticated remote code execution vulnerability that allows logged-in users to inject arbitrary commands through the crontab configuration interface. Attackers can exploit the crontab endpoint by adding a malicious command that spawns a reverse shell to a specified IP and port.
Weakness: CWE-78
Which versions are affected by CVE-2023-53945?
It affects 1 product.
Products include Brainycp Brainycp.
How do I fix CVE-2023-53945?
No fix has been published for CVE-2023-53945 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-2023-53945 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53945 exists.
Sources
Also known as GHSA-fq6c-qxhp-r3x2.