Pixsoft Vivaz Login Endpoint servlet cross site scripting

A vulnerability was found in Pixsoft Vivaz 6.0.11. It has been classified as problematic. Affected is an unknown function of the file /servlet?act=login&submit=1&evento=0&pixrnd=0125021817031859360231 of the component Login Endpoint. The manipulation of the argument sistema 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. The vendor was contacted early about this disclosure but did not respond in any way.