An issue in Dolibarr 16 before 16.0.5 allows unauthenticated attackers to perform a database dump and access a company's entire customer file, prospects, suppliers, and employee information if a contact file exists.
https://www.dsecbypass.com/en/dolibarr-pre-auth-contact-database-dump/
https://www.dolibarr.org/forum/t/dolibarr-16-0-security-breach/23471/1
https://www.dolibarr.org/forum/t/dolibarr-16-0-security-breach/23471
https://github.com/Dolibarr/dolibarr/commit/be82f51f68d738cce205f4ce5b469ef42ed82d9e
https://github.com/Dolibarr/dolibarr/commit/bb7b69ef43673ed403436eac05e0bc31d5033ff7