Ticket #34105: 34105.diff

src/wp-includes/kses.php

@@ -776 +776 @@
         }
         // Allow HTML comments
 
-        if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches))
+        if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9-]+)([^>]*)>?$%', $string, $matches))
                 return '';
         // It's seriously malformed