CVE-2023-54339 Webgrind 1.1 - Remote Command Execution (RCE) via dataFile Parameter
Unauthenticated attackers can execute arbitrary system commands on Webgrind installations by manipulating the dataFile parameter in index.php.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-54339?
CVE-2023-54339 is a critical command injection vulnerability in jokkedk Webgrind, published on 13 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Webgrind 1.1 contains a remote command execution vulnerability that allows unauthenticated attackers to inject OS commands via the dataFile parameter in index.php. Attackers can execute arbitrary system commands by manipulating the dataFile parameter, such as using payload '0%27%26calc.exe%26%27' to execute commands on the target system.
Weakness: CWE-78
Which versions are affected by CVE-2023-54339?
It affects 1 product.
Products include Webgrind Project Webgrind.
How do I fix CVE-2023-54339?
No fix has been published for CVE-2023-54339 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-2023-54339 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-54339 exists.
Other vulnerabilities in jokkedk Webgrind
Sources
Also known as GHSA-pcqr-mvp3-63jx.