4D Server vulnerabilities

Latest 4D Server CVEs

Newest publication first

1. CVE-2024-39847 Arbitrary File Read and Server Side Request Forgery via XML External Entities in 4D Server SOAP

   Published 2026-04-30

   High·CVSS 8.7 EPSS 0.45%

   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.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.