PHPEMS index.api.php index deserialization

A vulnerability, which was classified as critical, has been found in PHPEMS up to 1.0. Affected by this issue is the function index of the file app/weixin/controller/index.api.php. The manipulation of the argument picurl leads to deserialization. The exploit has been disclosed to the public and may be used. VDB-253226 is the identifier assigned to this vulnerability.