WordPress Plugin PICA Photo Gallery is prone to an information disclosure vulnerability because it fails to properly sanitize user-supplied input. Attackers can exploit this issue to obtain sensitive information that may help in launching further attacks. WordPress Plugin PICA Photo Gallery version 1.0 is vulnerable; prior versions may also be affected.
Restrict access to the wp-content/plugins/pica-photo-gallery/picadownload.php script (e.g. via .htaccess) or disable the plugin until a fix is available