Is Post-Form Resubmission somehow prevented in WordPress 4.2.2?

If you’re refering to WP internal forms:

WordPress has an built in security mechanism called “wp nonces” (https://codex.wordpress.org/WordPress_Nonces) – that’s an unique hash generated for every WP-form. Every Backend code should check for the according nonce to make sure that

  1. The form submission wasn’t done from outside (usually attacks or bots)
  2. The form submission was done only once (usually unwanted reloads by users, bots or multiple submission cheating)

To check, have a look into the source code and search for a hidden field called wp_nonce or similar.

BR from Salzburg!

Related Posts:

  1. Custom taxonomy admin description
  2. Disable the “Skip to Toolbar” tabbing accessibility feature
  3. my checkbox is not saving it’s value
  4. Best way to reset some admin options form to default?
  5. How to switch between two forms for visitor once admin logged in?
  6. How to create input page in WordPress admin panel?
  7. Admin Ajax is returning 0
  8. Add a Separator to the Admin Menu?
  9. Adding a custom admin page
  10. Allowing admin-ajax.php to receive “application/json” instead of “x-www-form-urlencoded”
  11. Custom admin email for new user registration
  12. Make A WordPress Page Accessible To Admins Only, Redirect Other User Roles
  13. localhost/wp-admin on my local redirects to production site’s /wp-admin
  14. Creating my own Admin Forms in a WordPress CMS?
  15. How do I save data from submitted form from widget
  16. A similar hook as wp_head for the admin area
  17. How do I set up a webhook?
  18. Hide allow trackbacks/pingbacks
  19. How to retain HTML5 Attributes on Markup
  20. Gallery Settings Change available Columns
  21. Hide Admin menus per role in WordPress
  22. wordpress upload http error?
  23. Dynamically Set WordPress Post Title To The Category Name
  24. How to find out if an wp-admin action edited a file?
  25. Text snippets shared across posts
  26. Add Admin User via SQL
  27. Add number new posts (post_status = pending) to administration menu [duplicate]
  28. How to remove Gravatar from Username column
  29. Page only shows when user is logged in (even with visibility set to public)
  30. I keep getting logged out in Firefox
  31. get_template_part in admin
  32. Why Jetpack is missing the “Feedbacks” menu item? [closed]
  33. Getting the different post statuses + count like in edit.php, in a custom submenu page
  34. What is the optimal way to filter out subpages from admin?
  35. Create a Meta Box in the Admin User Screen?
  36. Send email to Admin when user/member updates specific user/member data
  37. Help with shortcode in admin-ajax [closed]
  38. Protect custom php file with login
  39. Remove the whole menu in the admin
  40. disable admin-bar search field for specific roles
  41. Limit Words in Category / Term Description – Admin Panel
  42. Change top level menu item to point to custom submenu item
  43. Change admin logout URL
  44. Link to post author but exclude administrator (on single.php)
  45. Default admin color scheme as “blue”
  46. Don’t attribute content to admin users
  47. Can user #1 (the initial user) be deleted without ill effect?
  48. wp-admin post.php JavaScript Links Not Working
  49. Remove duplicate product link from WooCommerce Page Row Actions
  50. How to set default editor tab
  51. Admin Taxonomy Terms – Orderby Term Field
  52. How do I add an admin notice within javascript in the admin interface for posts?
  53. Admin toolbar shows up when not logged in
  54. Make the Status, Visibility, or Date fields opened by default in the Publish box
  55. WordPress Admin Login Redirect Problem
  56. Attachment display settings only allows “full-size”
  57. Admin option sidebar count
  58. 500 internal server error on wp-admin only
  59. Admin Top Bar Not Showing On Front End
  60. WordPress administration Over SSL – To Force SSL Logins and SSL Admin Access
  61. Only Admin can Edit, Delete or Update
  62. Set Edit Post meta boxes inactive
  63. How to verify nonces in bulk?
  64. Getting admin notices to appear after page refresh
  65. Hide post title input for all roles except admin
  66. How to activate the dashboard
  67. avoiding the display of certain categories to certain user roles at content entry time
  68. hide elements of admin with css file
  69. WordPress Hacked 5.5 admin-ajax.php [closed]
  70. Excerpt showing under title in admin columns
  71. how to remove +new from wp admin area
  72. html id is removed for non admin user?
  73. Given multiple admin accounts, how can I make it so that only admin with X username can edit posts
  74. Dynamic WordPress Admin Panel
  75. How to show a custom notification to a specific user?
  76. Visual Editor only working for the admin user
  77. Control Users listed in Users List on dashboard
  78. Weird jquery problem when upgrade to WordPress 3.1
  79. Maintenance mode excluding site administrators
  80. my wordpress configuration locally vs live server
  81. Admin back end – get URL of file using file browser
  82. Unable to edit my “Administration Email Address” after mySQL editing?
  83. Why does my admin email address keep changing to something random?
  84. WordPress Admin Doesnt work
  85. Admin Bar Acting Up
  86. WP administration over SSL using different domain
  87. Hide top admin panel for non admin and non editors
  88. Is it possible to create a custom admin page for users?
  89. wp_category_checklist won’t show up for non-admin users
  90. Add button in admin columns
  91. Downloading file from wp-admin folder
  92. Dropdown list of available posts for post editing
  93. Unsure how to add simple checkboxes that write to a small table to admin
  94. Custom styles and scripts for specific admin screen
  95. Add Sort Link in Custom Post Type List
  96. TinyMCE buttons broken
  97. local WAMP admin user has lost privileges
  98. Is it possible to get rid of admin new updates notifications?
  99. WordPress 4.5 Inline Link Toolbar not working on custom wp_editor instance
  100. Cant enter admin page with SSL