lenve VBlog ArticleController.java uploadImg path traversal

A vulnerability classified as critical has been found in lenve VBlog up to 1.0.0. Affected is the function uploadImg of the file blogserver/src/main/java/org/sang/controller/ArticleController.java. The manipulation of the argument filename leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.