4D · 4D · CVE-2023-4770
**Name of the Vulnerable Software and Affected Versions**
4D versions 19 R8 100218
**Description**
An uncontrolled search path element vulnerability has been found in 4D and 4D server Windows executables applications. This vulnerability consists of a DLL hijacking by replacing x64 `shfolder.dll` in the installation path, causing an arbitrary code execution.
**Recommendations**
For version 19 R8 100218, consider restricting access to the `shfolder.dll` file in the installation path to minimize the risk of exploitation. As a temporary workaround, avoid using the vulnerable 4D and 4D server Windows executables applications until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.