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Dolibarr ERP EUVDEUVD-2026-63897

| CVE-2026-77686 LOW
Incorrect Privilege Assignment (CWE-266)
2026-08-21 cna@vuldb.com GHSA-9rjx-wh4h-x9fj
PHP Information Disclosure
2.1
CVSS 4.0 · Vendor: vuldb

Severity by source

Vendor (vuldb) PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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 by any authenticated low-privilege user; scope unchanged since impact is local to the Dolibarr instance; no confidentiality impact, integrity and availability both Low reflecting account deletion only.

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

Primary rating from Vendor (vuldb).

CVSS VectorVendor: vuldb

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
Source Code Evidence Fetched
Aug 21, 2026 - 11:35 vuln.today
Analysis Generated
Aug 21, 2026 - 11:35 vuln.today

DescriptionCVE.org

A weakness has been identified in Dolibarr up to 23.0.4. This affects an unknown part of the file htdocs/user/card.php of the component Account Handler. This manipulation of the argument ID causes improper authorization. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 24.0.0 is able to mitigate this issue. Patch name: b2a2c995537cb6282383b5e903cb5ffa29b823e6. The affected component should be upgraded.

AnalysisAI

Improper authorization in Dolibarr's user account management component (htdocs/user/card.php) through version 23.0.4 permits authenticated non-admin users to delete administrator accounts by supplying an arbitrary user ID to the Account Handler. The commit diff confirms the root cause: the deletion code path executed without verifying whether the target account held admin privileges or whether the requesting user was an administrator. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Dolibarr with low-privilege credentials
Delivery
Navigate to user management at htdocs/user/card.php
Exploit
Supply target admin account ID as request argument
Execution
Submit delete action bypassing privilege check
Impact
Administrator account permanently deleted
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Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated Dolibarr session; the CVSS 4.0 PR:L confirms low-privilege authenticated access is sufficient - no administrator role is needed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 2.1 reflects limited direct impact - integrity and availability are both rated Low (VI:L, VA:L) with no confidentiality exposure (VC:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated Dolibarr user holding a low-privilege account with access to the user management module submits a delete request to htdocs/user/card.php targeting an administrator account's user ID. Because pre-patch code performs no privilege check on the target object, the administrator account is successfully deleted. …
Remediation Upgrade Dolibarr to version 24.0.0, which resolves this issue via commit b2a2c995537cb6282383b5e903cb5ffa29b823e6 (https://github.com/Dolibarr/dolibarr/commit/b2a2c995537cb6282383b5e903cb5ffa29b823e6). … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-63897 vulnerability details – vuln.today
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