What’s Vulnerable › Vulnerabilities

CVE-2026-77923: Dolibarr 21.0.0 < 24.0.0 Authorization Bypass via clonetasks Mass Action

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-24 · updated 2026-10-12
• Weakness: CWE-863

Description

Dolibarr 21.0.0 before 24.0.0 contains an authorization bypass vulnerability caused by an inverted boolean condition in the private-project membership check within the clonetasks mass action handler in htdocs/core/actions_massactions.inc.php. Authenticated users with project creation permission but without access to a target private project can exploit the flawed !in_array() check to clone tasks into unauthorized private projects.

Affected products

• dolibarr: from 21.0.0 before 24.0.0 — fixed in 24.0.0

How to fix

Upgrade to a fixed version: dolibarr 24.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/Dolibarr/dolibarr/commit/1730aa56675b31cfede895fdae55b673d887fb8f
• https://github.com/Dolibarr/dolibarr/releases/tag/24.0.0
• https://www.vulncheck.com/advisories/dolibarr-authorization-bypass-via-clonetasks-mass-action

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