Executive brief
Daylight Studio FuelCMS, a content management system built on the CodeIgniter framework, contains a security flaw that allows an authorized user to execute arbitrary commands on the server. By exploiting a specific function used for managing software components, an attacker with basic login credentials can take full control of the website and its underlying data. This could lead to a complete service outage, theft of sensitive customer information, or the use of the server for further malicious activities.
Technical details
An authenticated remote code execution (RCE) vulnerability exists in Daylight Studio FuelCMS v1.5.2. The flaw is located within the `add_git_submodule` function in the `/fuel/modules/fuel/controllers/Installer.php` component. The vulnerability is classified as a command injection (CWE-77) issue, where the application fails to properly neutralize special elements used in a command. An attacker with low-privileged authenticated access can exploit this by sending a crafted request to the Installer controller, leading to the execution of arbitrary system commands on the host server. The vulnerability requires the application to be in 'dev mode' or for the attacker to have 'installer' permissions.
Affected products
- Daylight Studio FuelCMS 1.5.2
Timeline
- 2026-04-15: disclosed: CVE published to NVD