Guizhou Xiaoma Technology jpress Attachment Upload upload AttachmentUtils.isUnSafe cross site scripting

A vulnerability was found in Guizhou Xiaoma Technology jpress 5.1.2. It has been classified as problematic. Affected is the function AttachmentUtils.isUnSafe of the file /commons/attachment/upload of the component Attachment Upload Handler. The manipulation of the argument files[] leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.