CVE-2026-41230
Froxlor has a BIND Zone File Injection via Unsanitized DNS Record Content in DomainZones::add()
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.
INFO
Published Date :
April 23, 2026, 4:16 a.m.
Last Modified :
April 27, 2026, 5:01 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Froxlor to version 2.3.6 or later.
- Apply any available security patches for Froxlor.
- Review DNS configurations for unauthorized changes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41230.
| URL | Resource |
|---|---|
| https://github.com/froxlor/froxlor/commit/47a8af5d9523cb6ec94567405cfc2e294d3a1442 | Patch |
| https://github.com/froxlor/froxlor/releases/tag/2.3.6 | Release Notes |
| https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c | Exploit Vendor Advisory Mitigation |
| https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c | Exploit Vendor Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41230 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41230
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41230 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41230 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 27, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.6 Added Reference Type GitHub, Inc.: https://github.com/froxlor/froxlor/commit/47a8af5d9523cb6ec94567405cfc2e294d3a1442 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/froxlor/froxlor/releases/tag/2.3.6 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c Types: Exploit, Mitigation, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 23, 2026
Action Type Old Value New Value Added Reference https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c -
New CVE Received by [email protected]
Apr. 23, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L Added CWE CWE-93 Added Reference https://github.com/froxlor/froxlor/commit/47a8af5d9523cb6ec94567405cfc2e294d3a1442 Added Reference https://github.com/froxlor/froxlor/releases/tag/2.3.6 Added Reference https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c