Sergey Biryukov 846b0a57b8 Grouped backports to the 4.6 branch.
- Media: Prevent CSRF setting attachment thumbnails.
- Embeds: Add protocol validation for WordPress Embed code.

Merges [55763] and [55764] to the 4.6 branch.
Props dd32, isabel_brison, martinkrcho, matveb, ocean90, paulkevan, peterwilsoncc, timothyblynjacobs, xknown, youknowriad.
Built from https://develop.svn.wordpress.org/branches/4.6@55783


git-svn-id: http://core.svn.wordpress.org/branches/4.6@55295 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-05-16 15:45:21 +00:00
..
2020-10-29 19:00:24 +00:00
2023-05-16 15:45:21 +00:00
2016-07-26 23:24:28 +00:00
2020-10-29 19:00:24 +00:00
2016-08-10 23:57:30 +00:00
2020-10-29 19:00:24 +00:00
2016-08-10 23:57:30 +00:00
2020-10-29 19:00:24 +00:00