Nonces should be used to verify intent of the user, especially on destructive actions.
Imagine there is a link user can click to delete a post. User can do it, so when they click is a post gets deleted.
Now imagine someone else tricks user into clicking this link (look at this cat pic!). User still can do it, so from access perspective they are allowed to and a post still gets deleted. But it wasn’t their intent to delete anything in this situation.
Nonce adds a level of protection into these situations by limiting the action to a specific user in a specific span of time. If nonce is used then that very specific nonce needs to be used to trick user into taking an action.
Related Posts:
- Security – Ajax and Nonce use [closed]
- Can I use the same nonce for multiple requests on the same page?
- How to use nonce with front end submission form?
- esc_attr() right way and use
- Enforcing password complexity
- Does My Child-Theme Functions.php Need if{die} Security In It? [duplicate]
- Do I require the use of nonce?
- How Attackers write script into my php files?
- WordPress “Link has expired” error on updating posts
- Renaming wp-content folder dynamically
- How do I create a WP user outside of WordPress and auto login?
- Can I write ‘RewriteCond’ using ‘functions.php’?
- Is it unsafe to put php in the /wp-content/uploads directory?
- Sanitize get_query_var() url parameters
- What SQL / WordPress queries would need a nonce?
- Hiding WordPress Plugin Source Code
- Is this code malidcous
- Admin username and password
- Evaluations of two wordpress security plans against php code injection attack
- WP nonce invalid
- WordPress custom login form using Ajax
- Detect session/cookie variable in wordpress to prevent access to documents
- Is there any risk setting WordPress file permissions and FS method to ‘direct’ on localhost?
- SQL Injection blocked by firewall
- How to prevent XSS alter custom global javascript object & methods in WordPress
- Why ajax doesn’t work on certain wordpress hooks and reload the page instead?
- Why ajax doesn’t work on certain wordpress hooks?
- Generating an nonce for Content Security Policy and all scripts – How to make it match/persist for each page load?
- Are nonces in WP REST API optional by default?
- Cannot execute php files in wp-content
- How do I get around “Sorry, this file type is not permitted for security reasons”?
- Security: blocking direct access of php files
- Form Security: nonce vs. jQuery
- Correct and safe way to include php content in my page
- Password minimum length in personal subscription [closed]
- How to add API security keys into JS of wordpress securely
- Is it best to avoid using $wpdb for security issues?
- Hardening uploads folder in IIS breaks images
- Troll the hackers by redirecting them
- Security updates to 3.3.2
- how to prevent wordpress admin from logging in via woocommerce my-account page
- malware undetectable by multiple scans
- Decoded malware code [closed]
- How to use the wpsnonce clone post link?
- Updating From Mobile App – Exposing Site to Hacking
- security concerns if using html data-* attribute for l10n?
- How to correctly escape an echo
- Reject all malicious URL requests functions.php
- portfolio site – about this site section – is it safe to post some code
- Reliable way to add nonce to HTTP Header in WordPress?
- echo cutom css code to WordPress page template file ? is this safe?
- Log out without confirmation request (nonce)
- Change button link to add nonce
- How to secure my php forms
- $.ajax results in 403 forbidden
- Site infected by link
- Access WP files on “server 1”, from “server 2” – using wp-load on an external website
- Deny php execution in /wp-includes – using .htaccess in /wp-includes VS root folder
- Retrieve $_POST data to send to javascript without using localize script
- Previewing/Updating some Pages causes “The requested URL was rejected” Error
- What is the best practice for restricting a section to logged in users?
- Nonce fail after second submit attempt
- Using Nonce for my Form
- How to quickly/easily make an analysis (reverse engineering) of WordPress?
- what to do after instlling cyberpanel on VPS
- Nonce code vulnerability
- How to display thumbnail if post is assigned one otherwise not
- Pass custom value to custom taxonomy
- Auto create description in post
- Custom field in title
- Dynamic Gallery
- Is there a way to randomize and connect a background and header image?
- Post Thumbnail on Single (if elseif else)
- Jquery and Sticky
- Blog only showing code
- Trying to see if page is category or single and displaying title with appropriate heading tag
- Get null from POST
- Show results for multiple page-types
- Different image and background color depending on page type
- Display pages from specific page template
- How to have post count after each listed category
- If Elseif Query
- Name Input from widget displays Sidebar name instead of saved data
- Querying multiple meta_keys in WordPress SQL query
- Inserting A Feed and Sidebar into an HTML Page
- WordPress – show number of comments for each post in widget
- Enabling XSendFile causes 404 for images on WordPress Multisite / Network
- Show items by user_role
- Break a WordPress function to run in patches and re-continue
- str_replace not responding in functions.php [closed]
- PHP Call outside class function inside anonymous function
- How to add feature image url in my template file and content as well?
- Arrange Category post manually when displayed
- Too few arguments for printf() [closed]
- Trying to fix multiple category drop down
- How to get category pages to look like a certain archive page?
- Trying to customize wordpress drop down categories
- How to get WordPress Adminmenu items?
- How can I put a custom field as the link of a button shortcode?
- how to exclude admin page from add_rewrite_rule in wordpress