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/actionsmassactions.inc.php. Authenticated users with project creation permission but without access to a target private project can exploit the flawed !inarray() check to clone tasks into unauthorized private projects.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77923.json",
"cwe_ids": [
"CWE-863"
],
"cna_assigner": "VulnCheck"
}