We are running 7.2.1 with the Telerik security update. The issue seems to have started after the update was applied.
The standard HTML module is unable to save HTML that contains certain code. The postback returns 403 Forbidden. The postback URL is {mysite}/{page}/ctl/Edit/mid/967?popUp=true
The HTML I have found that causes the issue can be:
- Any link to an external URL, i.e. with the http or https protocol. If the link is relative to the site it is accepted.
- An HTML comment < ! -- comment -- >
This is a critical problem. Please help!