# CVE-2026-30461: Daylight Studio FuelCMS command injection in Installer controller

Source: https://junglewise.ai/threats/cve-2026-30461-daylight-studio-fuelcms-command-injection-in-installer-controller  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-15. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2026-30461 · Severity: high · CVSS 8.3 · Published 2026-04-15

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.

## Quick answers

**Is CVE-2026-30461 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-30461 being exploited in the wild.

**How severe is CVE-2026-30461?** High severity, with a CVSS score of 8.3, published 15 April 2026.

**Which products and versions are affected?** Daylight Studio FuelCMS 1.5.2.

**Is there a fix for CVE-2026-30461?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-30461 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-30461?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## 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

## References

- [http://fuelcms.com/](http://fuelcms.com/)
- [https://github.com/daylightstudio/FUEL-CMS/blob/master/fuel/modules/fuel/controllers/Installer.php](https://github.com/daylightstudio/FUEL-CMS/blob/master/fuel/modules/fuel/controllers/Installer.php)
- [https://pentest-tools.com/PTT-2025-028-Authenticated-RCE-via-Git-Submodules.pdf](https://pentest-tools.com/PTT-2025-028-Authenticated-RCE-via-Git-Submodules.pdf)