There is an untrusted search path vulnerability in Esri ArcGIS AllSource 1.2 and 1.3 that may allow a low privileged attacker with write privileges to the local file system to introduce a malicious executable to the filesystem. When the victim performs a specific action using ArcGIS AllSource, the file could execute and run malicious commands under the context of the victim. This issue is corrected in ArcGIS AllSource 1.2.1 and 1.3.1.