CVE-2026-34234
CriticalSummary
CtrlPanel is open-source billing software for hosting providers, which in versions 1.1.1 and prior is vulnerable to unauthenticated Remote Code Execution (RCE) due to improper install.lock checking. This allows an attacker to execute arbitrary commands on the server.
Risk Assessment
This vulnerability poses a serious risk to organizations as it allows attackers to remotely execute code on the server, potentially leading to full system compromise.
Recommendation
It is recommended to upgrade to version 1.2.0, where the issue has been fixed, to secure the system against potential attacks.
Original NVD description (English source)
CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the web-based installer (public/installer/index.php) is vulnerable to unauthenticated Remote Code Execution (RCE) because it performs the install.lock check only after including and executing form handler files, leaving installer endpoints reachable on already-installed instances. The handlers also pass unsanitized user input directly into shell commands, allowing an attacker to submit crafted requests that execute arbitrary commands on the server. The vulnerability stems from two combined weaknesses: (1) premature form handler execution before the lock file gate, and (2) unsafe use of user input in shell command construction. This issue is reported to be actively exploited in the wild. The issue has been fixed in version 1.2.0.