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-rw-r--r--program/lib/Roundcube/html.php15
1 files changed, 12 insertions, 3 deletions
diff --git a/program/lib/Roundcube/html.php b/program/lib/Roundcube/html.php
index 33517fbcd..64324dd8e 100644
--- a/program/lib/Roundcube/html.php
+++ b/program/lib/Roundcube/html.php
@@ -269,19 +269,28 @@ class html
return '';
}
- $allowed_f = array_flip((array)$allowed);
+ $allowed_f = array_flip((array)$allowed);
$attrib_arr = array();
+
foreach ($attrib as $key => $value) {
// skip size if not numeric
if ($key == 'size' && !is_numeric($value)) {
continue;
}
- // ignore "internal" or not allowed attributes
- if ($key == 'nl' || ($allowed && !isset($allowed_f[$key])) || $value === null) {
+ // ignore "internal" or empty attributes
+ if ($key == 'nl' || $value === null) {
continue;
}
+ // ignore not allowed attributes
+ if (!empty($allowed)) {
+ $is_data_attr = substr_compare($key, 'data-', 0, 5) === 0;
+ if (!isset($allowed_f[$key]) && (!$is_data_attr || !isset($allowed_f['data-*']))) {
+ continue;
+ }
+ }
+
// skip empty eventhandlers
if (preg_match('/^on[a-z]+/', $key) && !$value) {
continue;