Medium severity · published Apr 23, 2026
CVE-2026-41233
Froxlor has a Reseller Domain Quota Bypass via Unvalidated adminid Parameter in Domains.add()
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
froxlor · froxlor
< 2.3.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41233
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41233
Patch
https://github.com/froxlor/froxlor/commit/bf47ba15329506e9f9662f9462463932aa80dff5
Release Notes
https://github.com/froxlor/froxlor/releases/tag/2.3.6
Exploit
https://github.com/froxlor/froxlor/security/advisories/GHSA-jvx4-xv3m-hrj4
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