CVE-2026-41233 MEDIUM

CVE-2026-41233: Froxlor has a Reseller Domain Quota Bypass via Unvalidated adminid Parameter in Domains.add()

Vendor Froxlor
Product froxlor
Weakness CWE-863 · Incorrect authorization
Published April 23, 2026
Last update April 23, 2026

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

Froxlor is open source server administration software. Prior to version 2.3.6, in `Domains.add()`, the `adminid` parameter is accepted from user input and used without validation when the calling reseller does not have the `customers_see_all` permission. This allows a reseller to attribute newly created domains to any other admin, bypassing their own domain quota (since the wrong admin's `domains_used` counter is incremented) and potentially exhausting another admin's quota. Version 2.3.6 fixes the issue.

Key dates

02Disclosure timeline

April 23, 2026 CVE published
April 23, 2026 Record updated