CVE-2026-41233: Froxlor is open source server administration software

Q: How do I fix CVE-2026-41233?

froxlor: upgrade to 2.3.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-41233 being exploited?

CVE-2026-41233 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41233 affect?

CVE-2026-41233 affects froxlor. Severity is medium (CVSS 5.4). 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_al

Q: How urgent is CVE-2026-41233?

Priority 28/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2026-41233 is a medium-severity flaw (CVSS 5.4) affecting froxlor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 exha

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-04-23
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: froxlor

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-23 05:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

froxlor froxlor UPGRADE

Affected: < 2.3.6

Fixed in: 2.3.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy froxlor || rpm -q froxlor || froxlor --version

2. UPGRADE to 2.3.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade froxlor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade froxlor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41233?

froxlor: upgrade to 2.3.6. Exact commands for each OS are on this page.

Is CVE-2026-41233 being exploited?

CVE-2026-41233 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41233 affect?

CVE-2026-41233 affects froxlor. Severity is medium (CVSS 5.4). 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_al

How urgent is CVE-2026-41233?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2026-41232 MEDIUM 5.0 UPGRADE Froxlor is open source server administration software
CVE-2026-41231 HIGH 7.5 UPGRADE Froxlor is open source server administration software
CVE-2026-41230 HIGH 8.5 UPGRADE Froxlor is open source server administration software
CVE-2026-41229 CRITICAL 9.1 UPGRADE Froxlor is open source server administration software
CVE-2026-41228 CRITICAL 9.9 UPGRADE Froxlor is open source server administration software

References

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