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Dolibarr ERP CVE-2026-85401

| EUVDEUVD-2026-70872 LOW
Improper Access Control (CWE-284)
2026-09-04 VulDB GHSA-j5c5-5r34-44pm
PHP Authentication Bypass N A Dolibarr
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.4 MEDIUM

Network-reachable but requires authenticated session (PR:L); limited read/write to medias directory with no availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

5
Source Code Evidence Fetched
Sep 04, 2026 - 03:33 vuln.today
Analysis Generated
Sep 04, 2026 - 03:33 vuln.today
Severity Changed
Sep 04, 2026 - 03:22 NVD
MEDIUM LOW
CVSS changed
Sep 04, 2026 - 03:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
CVE Published
Sep 04, 2026 - 02:45 cve.org
LOW 2.1

DescriptionCVE.org

A weakness has been identified in Dolibarr up to 21.0.4/22.0.5/23.0.3. Affected by this issue is some unknown functionality of the file htdocs/core/filemanagerdol/connectors/php/config.inc.php of the component Legacy File Manager. Executing a manipulation can lead to improper access controls. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 23.0.4 can resolve this issue. This patch is called ef6631e9bd5ec4b8cec0e88f1796d3d10dad02ec. It is suggested to upgrade the affected component.

AnalysisAI

Improper access control in Dolibarr's Legacy File Manager connector allows any authenticated user - regardless of assigned module permissions - to access and interact with the medias directory. Affected versions span up to 21.0.4, 22.0.5, and 23.0.3. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid Dolibarr user account of any privilege level - even accounts with no module rights assigned. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 2.1 accurately reflects the authenticated requirement (PR:L) and limited per-component impact (VC:L/VI:L/VA:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to Dolibarr 23.0.4, which contains the fix via commit ef6631e9bd5ec4b8cec0e88f1796d3d10dad02ec (PR #39731, https://github.com/Dolibarr/dolibarr/pull/39731). … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-85401 vulnerability details – vuln.today
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