crmeb_java WeChatMessageController.java webHook xml external entity reference

A vulnerability, which was classified as problematic, has been found in crmeb_java up to 1.3.4. Affected by this issue is the function webHook of the file WeChatMessageController.java. The manipulation leads to xml external entity reference. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.