CVE-2026-41230

Froxlor has a BIND Zone File Injection via Unsanitized DNS Record Content in DomainZones::add()

HIGH
8.5
CVSS Score
Published: April 23, 2026 at 03:47 AM UTC
Updated: June 17, 2026 at 10:46 AM UTC
1 product affected across 1 vendorFroxlor

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Severity
HIGH8.5
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

Froxlor is open source server administration software. Prior to version 2.3.6, `DomainZones::add()` accepts arbitrary DNS record types without a whitelist and does not sanitize newline characters in the `content` field. When a DNS type not covered by the if/elseif validation chain is submitted (e.g., `NAPTR`, `PTR`, `HINFO`), content validation is entirely bypassed. Embedded newline characters in the content survive `trim()` processing, are stored in the database, and are written directly into BIND zone files via `DnsEntry::__toString()`. An authenticated customer can inject arbitrary DNS records and BIND directives (`$INCLUDE`, `$ORIGIN`, `$GENERATE`) into their domain's zone file. Version 2.3.6 fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.3.6
Affected range stops below 2.3.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/froxlor/froxlor/releases/tag/2.3.6

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-93

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