Froxlor up to 2.3.7 API Command DomainZones.php DomainZones.add record/type input validation

Summaryinfo

A vulnerability classified as problematic was found in Froxlor up to 2.3.7. This impacts the function DomainZones.add of the file lib/Froxlor/Api/Commands/DomainZones.php of the component API Command. Executing a manipulation of the argument record/type can lead to input validation. This vulnerability is tracked as CVE-2026-54543. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Froxlor up to 2.3.7 and classified as problematic. This vulnerability affects the function DomainZones.add of the file lib/Froxlor/Api/Commands/DomainZones.php of the component API Command. The manipulation of the argument record/type with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-54543 since 06/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

By approaching the search of inurl:lib/Froxlor/Api/Commands/DomainZones.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.3.8 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Froxlor

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7

License

• open-source

Website

• Product: https://github.com/froxlor/froxlor/

CPE 2.3info

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CPE 2.2info

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