CVE-2026-41230 | Froxlor up to 2.3.5 DomainZones::add crlf injection (GHSA-47hf-23pw-3m8c / WID-SEC-2026-1124)

VDB-359104 · CVE-2026-41230 · GHSA-47HF-23PW-3M8C FROXLOR UP TO 2.3.5 DOMAINZONES::ADD CRLF INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 1.65+ Summaryinfo A vulnerability was found in Froxlor up to 2.3.5 and classified as problematic. This impacts the function DomainZones::add. Executing a manipulation can lead to crlf injection. The identification of this vulnerability is CVE-2026-41230. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability has been found in Froxlor up to 2.3.5 and classified as problematic. This vulnerability affects the function DomainZones::add. The manipulation with an unknown input leads to a crlf injection vulnerability. The CWE definition for the vulnerability is CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. As an impact it is known to affect integrity. CVE summarizes: Froxlor is open source server administration software. Prior to version 2.3.6, `DomainZones::add()` accepts arbitrary DNS record types without a whitelist and does not sanitize newline characters in the `content` field. When a DNS type not covered by the if/elseif validation chain is submitted (e.g., `NAPTR`, `PTR`, `HINFO`), content validation is entirely bypassed. Embedded newline characters in the content survive `trim()` processing, are stored in the database, and are written directly into BIND zone files via `DnsEntry::__toString()`. An authenticated customer can inject arbitrary DNS records and BIND directives (`$INCLUDE`, `$ORIGIN`, `$GENERATE`) into their domain's zone file. Version 2.3.6 fixes the issue. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-41230 since 04/18/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. Upgrading to version 2.3.6 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 47a8af5d9523cb6ec94567405cfc2e294d3a1442 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1124). Affected Open Source Froxlor Productinfo Name Froxlor Version 2.3.0 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 License open-source Website Product: https://github.com/froxlor/froxlor/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.4 VulDB Meta Temp Score: 6.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.5 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Crlf injection CWE: CWE-93 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Froxlor 2.3.6 Patch: 47a8af5d9523cb6ec94567405cfc2e294d3a1442 Timelineinfo 04/18/2026 CVE reserved 04/23/2026 +5 days Advisory disclosed 04/23/2026 +0 days VulDB entry created 04/23/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-47hf-23pw-3m8c Status: Confirmed CVE: CVE-2026-41230 (🔒) GCVE (CVE): GCVE-0-2026-41230 GCVE (VulDB): GCVE-100-359104 CERT Bund: WID-SEC-2026-1124 - Froxlor: Mehrere Schwachstellen Entryinfo Created: 04/23/2026 07:15 Updated: 04/23/2026 09:38 Changes: 04/23/2026 07:15 (67), 04/23/2026 09:38 (7) Complete: 🔍 Cache ID: 99:713:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸