Jake Spurlock 69ad1bb1c9 General: WordPress updates
* XML-RPC: Improve error messages for unprivileged users.
* External Libraries: Disable deserialization in Requests_Utility_FilteredIterator
* Embeds: Disable embeds on deactivated Multisite sites.
* Coding standards: Modify escaping functions to avoid potential false positives.
* XML-RPC: Return error message if attachment ID is incorrect.
* Upgrade/install: Improve logic check when determining installation status.
* Meta: Sanitize meta key before checking protection status.
* Themes: Ensure that only privileged users can set a background image when a theme is using the deprecated custom background page.

Brings the changes from [49380,49382-49388] to the 4.6 branch.

Props xknown, zieladam, peterwilsoncc, whyisjake, desrosj, dd32.


git-svn-id: https://develop.svn.wordpress.org/branches/4.6@49400 602fd350-edb4-49c9-b593-d223f7449a82
2020-10-29 18:59:47 +00:00
2020-10-29 18:59:47 +00:00
2020-10-29 18:59:47 +00:00
2020-06-10 21:32:30 +00:00
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