CVE-2026-34246: CtrlPanel: Stored XSS in Admin Role Management via Unescaped DataTable HTML Output
CtrlPanel is open-source billing software for hosting providers. Versions 1.1.1 and prior contain a Stored Cross-Site Scripting (XSS) vulnerability exists in the admin role management interface. In app/Http/Controllers/Admin/RoleController.php, the datatable() method interpolates $role->name and $role->color directly into a <span> element's HTML and style attribute without sanitization, and the chained .rawColumns(['actions', 'name']) call instructs DataTables to render the name column as raw HTML, bypassing automatic output escaping. An admin with role creation or edit permissions can inject a payload such as <img src=x onerror="alert('XSS_POC')"> into the name or color fields, which is persisted to the database and executes in the browser of every admin who loads the /admin/roles page. This enables session hijacking via cookie theft, credential harvesting through fake login prompts or keyloggers, lateral privilege escalation by performing admin actions on behalf of victims, and a persistent backdoor that re-executes on every page load until the malicious role record is removed. This issue has been resolved in version 1.2.0.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34246?
CVE-2026-34246 is classified as a high severity vulnerability due to its potential for Stored Cross-Site Scripting attacks.
How do I fix CVE-2026-34246?
To fix CVE-2026-34246, upgrade CtrlPanel to version 1.2.0 or later, which mitigates the vulnerability.
What types of systems are affected by CVE-2026-34246?
CVE-2026-34246 affects CtrlPanel versions 1.1.1 and prior, specifically in the admin role management interface.
What are the risks associated with CVE-2026-34246?
The risks of CVE-2026-34246 include unauthorized script execution, data theft, and potential compromise of the admin interface.
How can I determine if my system is vulnerable to CVE-2026-34246?
To determine if your system is vulnerable to CVE-2026-34246, check if you are using CtrlPanel version 1.1.1 or earlier.