CVE-2026-41231Public exploitNetwork attack vector

Privilege escalation via unchecked export symlink

Published Apr 23, 2026 · Updated Apr 23, 2026

Improper link resolution in Froxlor before 2.3.6 allows remote authenticated users to take ownership of arbitrary directories via data export. DataDump.add passes a customer-controlled export path to FileDir::makeCorrectDir without the home-directory boundary, and root-run ExportCron recursively changes ownership on the symlink target. Exploitation requires enabled exports, a customer API key, and FTP or SSH access, and it grants control of targeted files up to system-level privilege escalation.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper link resolution in Froxlor before 2.3.6 allows remote authenticated users to take ownership of arbitrary directories via data export. DataDump.add passes a customer-controlled export path to FileDir::makeCorrectDir without the home-directory boundary, and root-run ExportCron recursively changes ownership on the symlink target. Exploitation requires enabled exports, a customer API key, and FTP or SSH access, and it grants control of targeted files up to system-level privilege escalation.

The record

CVE
CVE-2026-41231
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
Froxlor
Product
Froxlor
Classifications
CWE-59, T1222.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Froxlor · Froxlorversion=< 2.3.6

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1222.002Linux and Mac File and Directory Permissions Modification

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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