TI-2026-39382 Aliases CVE-2026-54543 GHSA-5rw4-4665-cvwf

Froxlor DomainZones.add allows DNS zone-file RR injection via record/type fields

LOW 25CWE-74Published 2026-08-18 · Updated 2026-08-19

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00447 39th percentileScored 2026-11-07

Fix Fixed froxlor (froxlor): 2.3.8froxlor/froxlor (Packagist): 2.3.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
froxlor	froxlor	before 2.3.8	2.3.8	Patch available	CNA
—	froxlor/froxlor (Packagist)	before 2.3.8	2.3.8	Patch available	GHSA-5rw4-4665-cvwf

froxlor Vendorfroxlor Affected before 2.3.8 Fixed in 2.3.8 Patch available CNA
froxlor/froxlor (Packagist) Vendor— Affected before 2.3.8 Fixed in 2.3.8 Patch available GHSA-5rw4-4665-cvwf

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:froxlor:froxlor::::::::	—	—	froxlor

cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* Versions — — ·froxlor

Remediation

Fix · CNA froxlor (froxlor) Fixed in 2.3.8
Fix · GHSA-5rw4-4665-cvwf froxlor/froxlor (Packagist) Fixed in 2.3.8 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-54543
2026-10-03 Alias added: GHSA-5rw4-4665-cvwf

References

Other 4

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

See all 86 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences