There are few more elements like title which are causing similar issues.
I fo...

Contribution Date
Technology
Drupal
Contribution Project
Drupal core
Contribution Details

There are few more elements like title which are causing similar issues.
I found one similar in class that provides link element render implementation.
Attached patch for it.

Issue Status
Needs Review
Contribution Author
Mohit Aghera
Contribution Issue Link
Title for details form elements is not set as '#markup' and it will be escaped, but all other form elements use '#markup' and are not escaped
Contribution Link
https://www.drupal.org/project/drupal/issues/2652850#comment-12448526
Files count
2
Patches count
1