Merge pull request #940 from getformwork/security/add-sanitizer-missing-uri-attributes

Add missing URI attributes to `HtmlSanitizer`

Author: giuscris

formwork/src/Sanitizer/Reference/HtmlReference.php

@@ -369,10 +369,20 @@ class HtmlReference
      */
     public const array URI_ATTRIBUTES = [
         'action',
-        'src',
+        'archive',
+        'background',
+        'cite',
+        'classid',
+        'codebase',
+        'data',
+        'formaction',
         'href',
+        'longdesc',
         'lowsrc',
-        'background',
+        'manifest',
         'ping',
+        'poster',
+        'src',
+        'usemap',
     ];
 }