CVE-2026-34246: CtrlPanel: Stored XSS in Admin Role Management via Unescaped DataTable HTML Output

Published May 19, 2026
·
Updated

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

1 affected component
CtrlPanel CtrlPanel<=1.1.1

Event History

May 19, 2026
CVE Published
via MITRE·09:18 PM
Data Sourced
via MITRE·09:18 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

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.

2

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.

3

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.

4

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.

5

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.

Contact

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