CVE-2026-41231 | Froxlor up to 2.3.5 Destination DataDump.add fixed_homedir link following (GHSA-75h4-c557-j89r)

VDB-359098 · CVE-2026-41231 · GHSA-75H4-C557-J89R FROXLOR UP TO 2.3.5 DESTINATION DATADUMP.ADD FIXED_HOMEDIR LINK FOLLOWING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.3 $0-$5k 0.94+ Summaryinfo A vulnerability described as critical has been identified in Froxlor up to 2.3.5. This vulnerability affects the function DataDump.add of the component Destination Handler. Executing a manipulation of the argument fixed_homedir can lead to link following. This vulnerability appears as CVE-2026-41231. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended. Detailsinfo A vulnerability was found in Froxlor up to 2.3.5. It has been declared as critical. This vulnerability affects the function DataDump.add of the component Destination Handler. The manipulation of the argument fixed_homedir with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: Froxlor is open source server administration software. Prior to version 2.3.6, `DataDump.add()` constructs the export destination path from user-supplied input without passing the `$fixed_homedir` parameter to `FileDir::makeCorrectDir()`, bypassing the symlink validation that was added to all other customer-facing path operations (likely as the fix for CVE-2023-6069). When the ExportCron runs as root, it executes `chown -R` on the resolved symlink target, allowing a customer to take ownership of arbitrary directories on the system. Version 2.3.6 contains an updated fix. The advisory is available at github.com. This vulnerability was named CVE-2026-41231 since 04/18/2026. The exploitation appears to be difficult. The attack can be initiated remotely. Technical details are known, but there is no available exploit. Upgrading to version 2.3.6 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2987b0e8806ef12b532410050ad76d13d673a87d 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. 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: 7.5 VulDB Meta Temp Score: 7.3 VulDB Base Score: 7.5 VulDB Temp Score: 7.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 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: Link following CWE: CWE-59 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: 2987b0e8806ef12b532410050ad76d13d673a87d 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-75h4-c557-j89r Status: Confirmed CVE: CVE-2026-41231 (🔒) GCVE (CVE): GCVE-0-2026-41231 GCVE (VulDB): GCVE-100-359098 Entryinfo Created: 04/23/2026 07:11 Changes: 04/23/2026 07:11 (69) Complete: 🔍 Cache ID: 99:6A5:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸