CVE-2024-39847: 4d Server

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Unauthenticated attackers can exploit a weakness in the XML parser functionality of the SOAP endpoints in 4D server. This allows them to obtain read access to files on the application server and adjacent network shares, and perform HTTP GET requests to arbitrary services.

Affected products

• 4d Server: version 20 only

Published 2026-04-30. Last modified 2026-06-17.