High severity · published Apr 23, 2026
CVE-2026-41231
Froxlor has Incomplete Symlink Validation in DataDump.add() that Allows Arbitrary Directory Ownership Takeover via Cron
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
froxlor · froxlor
< 2.3.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41231
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41231
Patch
https://github.com/froxlor/froxlor/commit/2987b0e8806ef12b532410050ad76d13d673a87d
Release Notes
https://github.com/froxlor/froxlor/releases/tag/2.3.6
Exploit
https://github.com/froxlor/froxlor/security/advisories/GHSA-75h4-c557-j89r
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