Vulnerability Description
Froxlor is open source server administration software. Prior to 2.3.8, the DomainZones.add API command in lib/Froxlor/Api/Commands/DomainZones.php accepts user-controlled record and type values without rejecting line delimiters, tab characters, semicolons, or unsupported DNS record types before lib/Froxlor/Dns/DnsEntry.php serializes the values into a BIND zone file. An authenticated customer with DNS-zone permissions can place a crafted value in the record field, or use the related type-field variant, to create additional resource-record lines that bypass Froxlor's field-level validation. BIND accepts the injected records, allowing modification of DNS data and possible DNS availability impact within a zone the caller is authorized to manage. This issue is fixed in version 2.3.8.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/froxlor/froxlor/commit/a4f09f09fa71337b6cdff364d0a641d631a013
- https://github.com/froxlor/froxlor/releases/tag/2.3.8
- https://github.com/froxlor/froxlor/security/advisories/GHSA-5rw4-4665-cvwf
FAQ
What is CVE-2026-54543?
CVE-2026-54543 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Froxlor is open source server administration software. Prior to 2.3.8, the DomainZones.add API command in lib/Froxlor/Api/Commands/DomainZones.php accepts user-controlled record and type values withou...
How severe is CVE-2026-54543?
CVE-2026-54543 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54543?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.