Questions tagged [nonce]

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16 views

Why does check_ajax_referer give a 403 error on https websites?

When I write an ajax funtion on a site without SSL, check_ajax_referer works as intended. But it fails with a 403 forbidden error on a https site. I've tried a lot of times, but I just don't know why ...
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19 views

Nonce failing on form submission

I'm updating some code in one of my WordPress plugins by adding a nonce to improve security. The plugin that has a form that generates some output that the user can copy and paste as a shortcode. At ...
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1answer
22 views

SSO autologin Wordpress + Ajax

That one keeps me awake at night. The problem is that the user is properly logging in, but AFTER page refresh and should be immediately logged in without page reload. Need a fresh eyes to look at it. ...
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1answer
26 views

how to send Ajax request in wordpress backend

On the fronted the wp_localize_script seems to be working as when I view the source I can see the nonce. wp_localize_script('scripts', 'myAjax', array( 'root_url' => get_site_url(), '...
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43 views

Nonces, AJAX, script variables & security in WordPress

Alright, so let's say you develop a website where you enqueue a js script on a page X of your frontend, using: wp_enqueue_script( 'script_handle', PATH_TO_SCRIPT, array(), '1.0.0', true ); ...
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1answer
89 views

permission_callback has no effect

WP version is 5.5.3 I have 3 API routes set in a plugin that is used in an admin dashboard page. One route is meant to be used "publicly". I have two very curious issues happening: My 3 ...
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17 views

Wordpress nonce failed sometime

I have generated the nonce key in the HTML form using the following function - wp_nonce_field('test_form_action', 'test_form_field'); and posted all the form data along with nonce value to server side ...
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1answer
22 views

CSP nonces with Cloudflare Workers

Like this blog, I use Cloudflare Workers to inject CSP (Content Security Policy) nonce in headers : https://scotthelme.co.uk/csp-nonces-the-easy-way-with-cloudflare-workers/ This is functional. Next, ...
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71 views

Identical wp_rest nonce returned from rest_api

TLDR: How can I force a new nonce to be returned, so that AJAX works without refreshing the page? Following on from Nonces and Ajax request to REST API and verification I implemented the Nonce ...
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1answer
112 views

Nonces and Ajax request to REST API and verification

Building my first WordPress in over a decade... using Timber for MVC. Vue on the frontend, and axios for ajax posts. All hosted on the same domain, so I can use cookies for authentication. I am ...
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1answer
86 views

Using a nonce Content Security Policy header for style-src for inline style elements returns errors

When using a nonce in a Content Security Policy header, both Google Chrome and Firefox return errors. The nonce value is for a style element i.e. <style id="some-id">// CSS </style&...
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1answer
238 views

Found 2 elements with non-unique id (#_ajax_nonce) and (#_wpnonce)

I am developing custom theme from scratch and creates a custom post type and getting this warning while editing custom post type. I also design custom Meta box with two input fields and using nonce in ...
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1answer
34 views

Wordpress JSON API nonces and Vue development server

As stated in the official docs, the JSON API CSRF protection only works from within Wordpress. It is important to keep in mind that this authentication method relies on WordPress cookies. As a result ...
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10 views

Ajax sends me back my home page as a response

Good morning all, So, I try to do a request with ajax and everything is going fine up to this point: In the frontend, Ajax sends me my home page as a response when I am logged in as a subscriber, i.e. ...
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1answer
92 views

WordPress is creating nonce as a logged in user but verifying it incorrectly

I'm having trouble validating a nonce created with wp_create_nonce() inside a hidden input with the name nonce in an html form: <input type="hidden" name="nonce" value="<...
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25 views

WordPress nonces are wrong and not working?

I really don't understand what is happening with WordPress nonces, i think they're wrong, or they're useless. I always have troubles working with that nonces, WordPess never been able to check one ...
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1answer
48 views

Change button link to add nonce

I am making a Logout button, but in order for it to work properly the link needs to have the correct nonce ("site.com/wp-login.php?action=logout&wp_nonce=X". I have found in another ...
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1answer
58 views

Verify a nonce in Form submission

I am new in using Nonce.I am using Nonce like below in a Form wp_nonce_field('add_new_addres','add_new_address'); I am trying to verify Nonce like below if(isset( $_REQUEST['action'] ) &&...
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94 views

wp_verify_nonce not working on the mobile device

I am using a very simple form request to and verify it through the wp_verify_nonce() function. It is working perfectly on the desktop. But not working on mobile devices( iPhone, Andriod ). Could ...
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40 views

How to use wp_create_nonce() to get user ID in WordPress Rest Api

I know a lot of questions have been asked about this topic but I have had no luck implementing their code. I want to be able to use get_current_user_id() inside my WordPress Rest Api. This is what I ...
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1answer
323 views

How to not cache nonces with WP Rocket?

We have a system where we pass a nonce from a PHP-script on the server to an AJAX-call running client-side, and then back again to check the validity of the request. This nonce is cached, and we can'...
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24 views

How do I mitigate replay attacks when talking about actions that shouldn't happen twice?

A nonce is supposed to first help me against CSRF and help against replay attacks is just a bonus if I "personalize" the nonce to something like pay-user-{id}, but here's the problem - if my link ...
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101 views

Draft preview and customize permission problems on multisite main site

So I've been stuck on this problem for quite a while now and it feels like I've tried everything. I would love for some support here. Setup A WordPress multisite with Bedrock structure PHP 7.3.17 (...
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14 views

Persist nonce across user sessions?

As per the WordPress Codex nonces are unique to the current user's session, so if a user logs in or out asynchronously any nonces on the page will no longer be valid. I am using a nonce to secure ...
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13 views

How to submit multiple nonces at once?

I have a form that incorporates three different forms from a plugin. Usually, each form would have it's own submit + nonce (which already exist and work), but I need to have just a single submit ...
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13 views

Not able to show entered value for a text input in a meta box

So I've searched for weeks and I know there are a lot of questions about this topic but I cannot figure out how to show the value that a user inputs into a text field in a custom meta box. I get the ...
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1answer
713 views

Can't GET draft posts via REST API from headless frontend

I have a headless install of Wordpress on v5.4.0. The frontend can't GET any post that is in draft status, though when accessing the API url directly the data is returned without an issue. I'm ...
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1answer
391 views

Properly applying nonce to a form using AJAX

So I'm still learning around WordPress and can't seem to figure out how to properly hook a nonce into a AJAX Form that I have created. Here I am hooking and localizing the js file and defining a ...
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16 views

Respond to wpnonce on front end

I've been doing some work recently with custom bulk actions and post row actions which hook into the admin_notices action to perform some function in the admin and return a notice with the result. ...
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23 views

Trying to wrap my head around the REST API, authentication, access tokens, and connecting an external app

Background and motivation I have been building an art education site for my mom for about a year and it's been a great learning experience / place to experiment. I use s2members to control access to ...
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18 views

What is the benefit of logout using an nonce?

I get the purpose of nonce in general, but It seems like this particular action would be safe without an nonce. What benefit does it bring?
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1answer
66 views

Why are nonces working in Firefox but not in Chrome?

I created the nonce when I localize a script file: wp_localize_script('cad-search', 'cad_ajax', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ), 'nonce'=> wp_create_nonce('...
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1answer
99 views

Backbone with custom rest endpoints

I have created a custom endpoint that returns select user meta data. I am trying to access this endpoint with Backbone. It works as expected in Postman and from my Backbone/javascript script If I have ...
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1answer
110 views

Is it safe to use a global wp nonce per user instead of a nonce per action?

Please refer to my comments on Greg's answer for more details in relation to his answer which are also relevant to this. I'm routing all my AJAX requests through a Controller, this is a class that ...
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145 views

Problem with ajax login/logout and nonces

My current flow is as follows: I use wp_localize_script to generate a nonce which my javascript can use. I pass this nonce with my login and logout request. When I login I touch the dom by removing ...
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200 views

x-wp-nonce across domains

I've installed WPML with a multiple domain configuration (one domain per language). The wrong thing is that, when editing for example a post while using a different domain from the main, it just ...
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30 views

whether a nonce is required for get type and get_query_var?

I have a front form that allows filtering. I think I need a nonce but I am not sure to use it or not. I use the get_query_var method to modify the main query. It uses a get method. whether a nonce is ...
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31 views

Unable to update plugins or log out

The server my site was hosted on recently went down and someone else was able to fix it for me. I am unclear on what exactly the issues with the server were, but since the site came back up, my cron ...
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40 views

Is nonce in PHP form and Ajax both necessary?

I have a php form which is submitted through jQuery Ajax. Previously i had used nonce with Ajax and PHP form seperately. Here i am using wp_nonce_field() in PHP form. Is it necessary to use ...
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1answer
73 views

When is it useful to use wp_verify_nonce

I know that wp_verify_nonce() is used to make sure that the $_POST is coming from a safe place. I am developing a WordPress plugin which creates custom lists. In order to do that the web site owner ...
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1answer
1k views

Headless Wordpress: How to authenticate front end requests?

I am envisioning Wordpress on the back end to work with React.js on the front end like this: Wordpress is installed on http://example.com/api React.js script is loaded into http://example.com/index....
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1answer
573 views

Passing a borrowed nonce through Postman fails

I'm trying to test borrowing a nonce from my browser session so that I can use it elsewhere, namely in my npm dev environment. I took a nonce passed into an open Chrome browser session, put it in a ...
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1answer
258 views

WP nonce invalid

Have a quick script to search for untranslated pages, and then returning a translate link. (Polylang makes a new post for a translation, which is then linked to the original.) All is working well, ...
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1answer
488 views

Rest API: wp_verify_nonce() fails despite receiving correct nonce value

I am generating a nonce to be used with client side fetch requests to the rest api: function prepAllAdminScripts() { wp_register_script( 'reactAdminArea' , PLUGIN_FOLDER_URL . 'shared/...
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31 views

Does it make sense to check a nonce on user log in?

I read the following blog post about implementing custom user log in: http://natko.com/wordpress-ajax-login-without-a-plugin-the-right-way/ In the post, the author walks through some PHP code for ...
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244 views

wp_create_nonce doesn't verify when using WP_List_Table

I've created an admin page where I'm displaying a list of a MySQL Table using WP_List_Table. In this table I need to be able to delete a record when I want to. And that's where I have a problem. To ...
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1answer
52 views

Custom Meta Boxes - Nonce Issue - Move to trash issue

Recently after updating Wordpress from 4.9.2 to 5.2, I have had to change a good bit of code to get my custom post type listings(or posts) to function and save data correctly. Specifically, with the ...
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2answers
458 views

Nonce in settings API with tabbed navigation

I'm rewording this because, as it's correctly been pointed out, the original post was "woefully inadequate." I made a plugin which has tabbed views for the various settings. It's based on this ...
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2answers
1k views

Wordpress REST API, Expired Nonce from Cache results in 403 forbidden

My wordpress site sits behind Akamai, which is a cacheing service similar to Cloudflare. I make the following API call: GET /wp-json/mytheme/v1/get-posts?post_type=videos This is done using ...
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31 views

wp_verfy_nonce keeps giving false

i have a form somthing like this <form id="sample_docs" method="post" action="<?php echo admin_url('admin-ajax.php'); ?>"> <?php wp_nonce_field('nonce_action_sample_docs', '...

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