Guizhou Xiaoma Technology jpress Avatar upload cross site scripting

A vulnerability classified as problematic was found in Guizhou Xiaoma Technology jpress 5.1.2. Affected by this vulnerability is an unknown functionality of the file /commons/attachment/upload of the component Avatar Handler. The manipulation of the argument files leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.