philibertperusse

I found the issue, it appears that if your condition logic contains quotes, like:
is_page('about')

then these quotes gets escaped, and then eval tries to eval
return (is_page(\'about\'))

I patched it by manually modifying widget_logic.php as follows, starting at line 281:

if (stristr($wl_value,"return")===false) {
   $wl_value="return (" . $wl_value . ");";
   // Unescape the quotes in $wl_value
   $wl_value=preg_replace("/\\\'/","'", $wl_value);
}

Hopefully the author will fix it and I will just have to overwrite my change.

I have the exact same issue! Same warning accross the website!