Access Control Weakness in Dolibarr Legacy File Manager
CVE-2026-85401

5.3MEDIUM

Key Information:

Vendor

Dolibarr

Status
Dolibarr
Vendor
CVE Published:
4 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-85401?

A vulnerability has been identified in the Dolibarr Legacy File Manager affecting versions up to 21.0.4, 22.0.5, and 23.0.3. The flaw exists in the configuration file located at htdocs/core/filemanagerdol/connectors/php/config.inc.php, where improper access controls can be exploited remotely. This vulnerability could potentially allow unauthorized users to manipulate the file manager’s controls, leading to significant security risks. A patch is available in version 23.0.4 to resolve this issue, and it is highly recommended for users to upgrade their installations to this version or later to mitigate the risk.

Affected Version(s)

Dolibarr 21.0.0

Dolibarr 21.0.1

Dolibarr 21.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-85401 - Proof of Concept

References

https://vuldb.com/vuln/398543
vdb-entry
https://vuldb.com/vuln/398543/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-85401
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abderrahmane Aksoum (VulDB User)
.