WPBE: Bulk Editor for WordPress Posts
Editing a post or two in WordPress is not that hard. When your site grows, you wouldn’t want to edit hundreds of posts manually. WPBE is a handy bulk post editor that saves you time making changes to your site. The plugin can handle post fields, categories, tags, and meta fields.
The WPBE plugin lets you filter by post fields. It also maintains a history of operations, so you can rollback unwanted changes. The plugin is AJAXified, so your changes are made without constant page reloads. You will be able to edit multiple posts with a couple of clicks
Thanks to this plugin, you can edit thumbnail, title, slug, status, author, category, date, and many other fields. This is a paid script.