Missing authorization in Froxlor SubDomains.delete API
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Froxlor from 0.10.0 before 2.3.15 has a missing authorization flaw (CWE-862) in the SubDomains.delete API command. An authenticated customer can delete reseller-provisioned main domains by supplying a main domain id, bypassing the web UI restriction. Attackers can also drive subdomains_used below zero to gain extra subdomain allowance.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Froxlor from 0.10.0 before 2.3.15 contains a missing authorization vulnerability in the SubDomains.delete API command that allows authenticated customers to delete reseller-provisioned main domains by supplying a main domain id. Attackers can bypass the web UI restriction to remove domains, orphan vhost, DNS and subdomain records, and drive subdomains_used below zero to gain extra subdomain allowance.
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
Remediation
Update Froxlor to version 2.3.15 or later, which fixes the issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA froxlor (froxlor) Fixed in 2.3.15
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
froxlor 2.3.15
3 records Highest priority Priority HIGH 1 HIGH, 2 MEDIUM
Other records, highest priority first
- TI-2026-76945 Symlink following in Froxlor enables root privilege escalationPriority HIGH 76
- TI-2026-76943 Authorization bypass in Froxlor Admins.get API exposes admin recordsPriority MEDIUM 57
Timeline
- 2026-10-20 Threatist record created from CVE-2026-113677
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: LOW → MEDIUM
- 2026-10-21 Alias added: GHSA-9rxg-hj9r-x482
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-2026-64867 froxlor before 2.3.12 Authentication Bypass via Session Persistence CVSS 4.0HIGH 8.7
- TI-2026-76945 Symlink following in Froxlor enables root privilege escalation CVSS 4.0CRITICAL 9.4
Sources
- CVE-2026-113677 · CVE Program
- CVE-2026-113677 · NVD
- FIRST EPSS
- GHSA-9rxg-hj9r-x482 · GitHub Advisory Database · CC BY 4.0
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