Link title with XML tags breaks preview of post

[baeldung]

Hi,
I'm using Wordpress 3.2.1 on a 32 bit Ubuntu Server 11.04 machine.

I have noticed that introducing an xml tag in the title of a Link (via the Visual Editor not directly in HTML) will essentially break the entire display of the page (when previewing).
I'm thinking that the tags aren't properly escaped.
Example of Link title that breaks preview:

Add <http-digest> similar to <http-basic> to the security namespace
Thanks.

[toscho]

I may be wrong, but I think that’s by intention to allow formatting of titles. See ​https://gist.github.com/1167559 for a plugin to fix it.

[baeldung]

That may be the case, but if the title is not well formatted, then the user should be warned and the value rejected. Allowing the value and then breaking the display of the post (in a major way - nothing after the link is displayed) is not very user friendly from a UX point of view.
Thanks for the feedback.

[solarissmoke]

I can reproduce in 3.2, but it seems to be fixed in 3.3.

[bpetty]

I was able to reproduce in 3.2, and confirmed as fixed in r18660 (between 3.2 and 3.3) with TinyMCE update to 3.4.5. See also #18107. Also still works in SVN trunk.