Improper Neutralization of Special Elements in Output Used by a Downstream Component in Froxlor - CVE-2026-54543
Published: June 29, 2026
Vulnerability identifier: #VU135779
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-54543
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: froxlor
Affected software:
Froxlor
Froxlor
Detailed vulnerability description
The vulnerability allows a remote user to inject additional DNS resource records into a generated zone file.
The vulnerability exists due to improper neutralization of special elements in output used by a downstream component in the DomainZones.add API command and DNS zone-file serialization when processing user-controlled record and type fields. A remote user can submit crafted record or type values containing line delimiters, tab characters, or comment delimiters to inject additional DNS resource records into a generated zone file.
The issue is limited to domains the user can manage, and no cross-tenant impact is established.
How to mitigate CVE-2026-54543
Install security update from vendor's website.