Vulnerability · Published Apr 23, 2026 · Assigned by GitHub_M

CVE-2026-41230Froxlor has a BIND Zone File Injection via Unsanitized DNS Record Content in DomainZones::add()

High 8.5

In plain English

A high-severity security flaw in froxlor from froxlor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.5High

Exploit odds (30 days)0.3%top 71.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	froxlor/froxlor	2.3.6	GHSA-47hf-23pw-3m8c

Affected products (as reported)

Vendor	Product	Versions
froxlor	froxlor	< 2.3.6

Weakness: CWE-93 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

References

https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8c x_refsource_CONFIRM
https://github.com/froxlor/froxlor/commit/47a8af5d9523cb6ec94567405cfc2e294d3a1442 x_refsource_MISC
https://github.com/froxlor/froxlor/releases/tag/2.3.6 x_refsource_MISC