Froxlor has a Reseller Domain Quota Bypass via Unvalidated adminid Parameter in Domains.add()
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| froxlor | froxlor | before 2.3.6 | 2.3.6 | Patch available | CNA |
| — | froxlor/froxlor (Packagist) | before 2.3.6 | 2.3.6 | Patch available | GHSA-jvx4-xv3m-hrj4 |
- froxlor Vendorfroxlor Affected before 2.3.6 Fixed in 2.3.6 Patch available CNA
- froxlor/froxlor (Packagist) Vendor— Affected before 2.3.6 Fixed in 2.3.6 Patch available GHSA-jvx4-xv3m-hrj4
Remediation
- Fix · CNA froxlor (froxlor) Fixed in 2.3.6
- Fix · GHSA-jvx4-xv3m-hrj4 froxlor/froxlor (Packagist) Fixed in 2.3.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41233
- 2026-10-03 Alias added: GHSA-jvx4-xv3m-hrj4
References
More Froxlor vulnerabilities
- TI-2023-00300 Command Injection in froxlor/froxlor CVSS 3.1HIGH 8.8
- TI-2023-02973 Improper Restriction of Excessive Authentication Attempts in froxlor/froxlor CVSS 3.1CRITICAL 9.8
- TI-2023-01234 Authentication Bypass by Primary Weakness in froxlor/froxlor CVSS 3.1CRITICAL 9.8
- TI-2023-01911 Unrestricted Upload of File with Dangerous Type in froxlor/froxlor CVSS 3.1HIGH 8.8
- TI-2026-29837 Froxlor has Local File Inclusion via path traversal in API `def_language` parameter that leads to Remote Code Execution CVSS 3.1CRITICAL 10.0
- TI-2026-29838 Froxlor has a PHP Code Injection via Unescaped Single Quotes in userdata.inc.php Generation (MysqlServer API) CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-41233 · CVE Program
- CVE-2026-41233 · NVD
- FIRST EPSS
- GHSA-jvx4-xv3m-hrj4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences