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CVE-2026-41231— Froxlor has Incomplete Symlink Validation in DataDump.add() that Allows Arbitrary Directory Ownership Takeover via Cron

Quick assessment

Affected
froxlor froxlor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Froxlor是Froxlor团队的一套轻量级服务器管理软件。 Froxlor 2.3.6之前版本存在后置链接漏洞，该漏洞源于DataDump.add()在构建导出目标路径时未传递$fixed_homedir参数，绕过符号链接验证，导致客户可以获取系统上任意目录的所有权。

CVSS 7.5 · High EPSS 0.52% · P42
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I. Basic Information for CVE-2026-41231

Vulnerability Information
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Vulnerability Title
Froxlor has Incomplete Symlink Validation in DataDump.add() that Allows Arbitrary Directory Ownership Takeover via Cron
Source: CVE Program / CVE List V5
Vulnerability 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 `$fixed_homedir` parameter to `FileDir::makeCorrectDir()`, bypassing the symlink validation that was added to all other customer-facing path operations (likely as the fix for CVE-2023-6069). When the ExportCron runs as root, it executes `chown -R` on the resolved symlink target, allowing a customer to take ownership of arbitrary directories on the system. Version 2.3.6 contains an updated fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Froxlor 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Froxlor是Froxlor团队的一套轻量级服务器管理软件。 Froxlor 2.3.6之前版本存在后置链接漏洞，该漏洞源于DataDump.add()在构建导出目标路径时未传递$fixed_homedir参数，绕过符号链接验证，导致客户可以获取系统上任意目录的所有权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
froxlor froxlor < 2.3.6 -

II. Public POCs for CVE-2026-41231

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III. Intelligence Information for CVE-2026-41231

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Patches & Fixes for CVE-2026-41231 (1)

Vendor Advisories for CVE-2026-41231 (1)

Same Patch Batch · froxlor · 2026-04-23 · 6 CVEs total

CVE-2026-41228 10.0 CRITICAL Froxlor has Local File Inclusion via path traversal in API `def_language` parameter that l
CVE-2026-41229 9.1 CRITICAL Froxlor has a PHP Code Injection via Unescaped Single Quotes in userdata.inc.php Generatio
CVE-2026-41230 8.5 HIGH Froxlor has a BIND Zone File Injection via Unsanitized DNS Record Content in DomainZones::
CVE-2026-41233 5.4 MEDIUM Froxlor has a Reseller Domain Quota Bypass via Unvalidated adminid Parameter in Domains.ad
CVE-2026-41232 5.0 MEDIUM Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allow

IV. Related Vulnerabilities

Same product: froxlor
Same vendor: froxlor
Same weakness: CWE-59

V. Comments for CVE-2026-41231

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