CVE-2026-34234: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Ctrlpanel-gg panel
CtrlPanel versions 1. 1. 1 and earlier contain a critical OS command injection vulnerability in the web-based installer. The vulnerability arises because the installer executes form handler files before checking the install. lock file, allowing unauthenticated attackers to reach installer endpoints on already-installed instances. These handlers use unsanitized user input directly in shell commands, enabling remote code execution. This flaw has been fixed in version 1. 2. 0. The vulnerability has a CVSS score of 10.
AI Analysis
Technical Summary
CtrlPanel-gg panel versions prior to 1.2.0 have an OS command injection vulnerability (CWE-78) in the web installer component (public/installer/index.php). The issue results from premature execution of form handlers before verifying the presence of an install.lock file, combined with unsafe incorporation of user input into shell commands. This allows unauthenticated remote attackers to execute arbitrary commands on the server. The vulnerability is addressed in version 1.2.0.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary OS commands on the affected server, leading to full compromise of confidentiality, integrity, and availability. The vulnerability is critical with a CVSS 3.1 base score of 10.0, reflecting network attack vector, no privileges required, no user interaction, and complete system compromise.
Mitigation Recommendations
Upgrade CtrlPanel to version 1.2.0 or later, where this vulnerability has been fixed. No other official remediation or temporary fixes are documented. Patch status is not explicitly stated but the vendor has released a fixed version, so applying this update is the recommended action.
CVE-2026-34234: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Ctrlpanel-gg panel
Description
CtrlPanel versions 1. 1. 1 and earlier contain a critical OS command injection vulnerability in the web-based installer. The vulnerability arises because the installer executes form handler files before checking the install. lock file, allowing unauthenticated attackers to reach installer endpoints on already-installed instances. These handlers use unsanitized user input directly in shell commands, enabling remote code execution. This flaw has been fixed in version 1. 2. 0. The vulnerability has a CVSS score of 10.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CtrlPanel-gg panel versions prior to 1.2.0 have an OS command injection vulnerability (CWE-78) in the web installer component (public/installer/index.php). The issue results from premature execution of form handlers before verifying the presence of an install.lock file, combined with unsafe incorporation of user input into shell commands. This allows unauthenticated remote attackers to execute arbitrary commands on the server. The vulnerability is addressed in version 1.2.0.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary OS commands on the affected server, leading to full compromise of confidentiality, integrity, and availability. The vulnerability is critical with a CVSS 3.1 base score of 10.0, reflecting network attack vector, no privileges required, no user interaction, and complete system compromise.
Mitigation Recommendations
Upgrade CtrlPanel to version 1.2.0 or later, where this vulnerability has been fixed. No other official remediation or temporary fixes are documented. Patch status is not explicitly stated but the vendor has released a fixed version, so applying this update is the recommended action.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-26T16:22:29.034Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0cd72dba1db47362f031e4
Added to database: 5/19/2026, 9:33:33 PM
Last enriched: 5/19/2026, 9:48:33 PM
Last updated: 5/19/2026, 10:34:22 PM
Views: 4
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