This vulnerability could be used by authors on a site to manipulate any files in the WordPress installation”, Jeremy Herve. Update Your Version Of Jetpack Further, Jetpack 12.1.1, the security update that is presently being automatically distributed to all WordPress websites utilizing the plug-in, began rolling out today and has already been updated on more than 4,130,000 sites using every version of Jetpack since 2.0.

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