Strengthening themes, plugins and core installation to prevent intrusion.

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4
votes
2answers
2k views

wp.getUsersBlogs XMLRPC Brute Force Attack/Vulnerability

After the holiday weekend, one of the larger sites I manage had a brute force attack on it. The attacker was attempting to use the wp.getUsersBlogs function and a list of popular usernames and ...
0
votes
1answer
21 views

Site is continuously accessing by several IPs

I have high traffic wordpress blog, but for last two days i am constantly getting the error "Error establishing a database connection". I have called to my hosting customer care and they are saying ...
3
votes
1answer
2k views

Is it true $wpdb->get_results is faster than WP_Query in most cases?

On my homepage, I have a section where I have to display the last five featured posts, where a featured post is simply a post with a custom field is_featured set to 1. I achieved what I want with two ...
0
votes
0answers
59 views

What is the best way to upload a temporary & sensitive file and then delete it when done

What is the best way to upload a temporary & sensitive file and then delete it when done. I'm writing a plugin (eventually for multisite) that allows users with a certain role to upload a .csv ...
0
votes
0answers
539 views

Why WordPress not logout after I have close my browser?

The default login cookie has expiry time as "session", so suppose when I close my browser, I need to login again when I visit wp-admin. But I've found that serveral time I've closed my browser (kill ...
0
votes
1answer
63 views

Why isn't the login page rate limited by default?

Brute force attacks seem to the be most common vulnerability on WP installs and rate limiting ought to be relatively easy to bake into WP itself as part of the official, default software (without the ...
0
votes
1answer
33 views

How to display post meta data in secure manner

I have have a custom post meta field where I can add a embedding code (a video for example, an iframe). Now I want to retrieve the code from the post meta and display it securely. I can display it ...
1
vote
1answer
297 views

Evaluations of two wordpress security plans against php code injection attack

Senario: I've posted one wordpress php code injection senario on SO before, url:http://stackoverflow.com/questions/26826082/what-is-the-highly-efficient-way-to-remove-a-block-of-string-pattern-in-php-...
2
votes
2answers
854 views

Subscribe to email for security fixes?

Is there any email alert list for security fixes? I'd rather not rely on just an RSS feed.
5
votes
6answers
305 views

Share same domain for wp-admin but for different website

I have site like http://www.foo.com http://www.bar.com And I've a wildcard SSL cert *.example.com, instead of buying two SSL certs for the above two domains, can I re-use my existing wildcard SSL ...
1
vote
1answer
238 views

Moving away from MD5: Where to declare the custom global $wp_hasher?

I want to move away from using MD5 for hashing passwords in the database. The plan is to declare a custom global $wp_hasher as hinted at in the docs for wp hash password(): Unless the global $...
0
votes
1answer
77 views

Custom RPC end-point security best pratice?

I trying to figure out how a custom entry point can be secured without loading the entire WP-stack. The built-in AJAX entry point is pretty slow and actually unusable on sites with lots of plugins. So ...
0
votes
2answers
352 views

How to create a private login page for admin.?

Can I create a login page, which could be entered all registered visitors, but were not allowed entrance to the administrator, even if he has entered the correct username and password? For admin I ...
0
votes
0answers
545 views

Nonces and Cache

It's clear that form submissions and AJAX requests, especially sensible ones, need "nonces" to avoid certain exploits. However, with heavy use of caching systems it becomes harder to generate them ...
0
votes
1answer
138 views

How can I save a password securely as a settings field

I have a plugin that requires the user to enter a password (to access an external site) into a form field on the plugin settings page. Right now this is just saved as plain text, but I need to make it ...
2
votes
5answers
4k views

Upgrading Wordpress 4.0 asks for FTP password

I was able to upgrade Wordpress 4.0 on my local machine, and I also just updated some plugins on the production machine, but when I try to update Wordpress 4.0 on the production machine, it is asking ...
0
votes
1answer
252 views

wp_create_nonce function doesn't work inside a plugin?

I am writing a WordPress plugin which is creating a form in one of its functions. It looks like this (very simplyfied): class MyPlugin { public function createForm() { $nonce = ...
1
vote
1answer
103 views

Is it safe to allow non-admin users access to media uploader

Hi fellow Wordpress users :) I wanted to ask is it safe to allow non-admin users access to WordPress media uploader. Can they inject a virus while uploading media? How is WP system fighting against ...
0
votes
1answer
446 views

Should I use wp_nonce_field on my contact form?

I have created a self submitting contact form template and it works nicely, however when I was browsing the web in search for tutorials (for creating contact forms) I have noticed that some people ...
1
vote
2answers
651 views

Restrict Access in Admin Panel

I want to restrict access to certain plugin pages / normal WP Pages. I've found a way to Hide these pages from the menu but currently not restrict them. For instance, I have an editor and I don't want ...
4
votes
1answer
1k views

Securing wp-admin folder - Purpose? Importance?

I am trying to understand how to secure a WordPress site. One security task I do not understand is...How important is it to protect the "wp-admin folder"? For example, I would consider limit login ...
1
vote
1answer
675 views

is_email() VS sanitize_email()

If I'm allowing a user to enter an email address to be saved into the database, should I use is_email() or sanitize_email()? Ex. update_user_meta( $user_id, $social_site, sanitize_email( $_POST[$...
0
votes
4answers
160 views

Do we need to escape data that we receive from theme options?

I'm creating a Wordpress theme that I'm hoping to sell on Themeforest. Now I know much about escaping user inputted data using functions like esc_html, esc_url and so on and I use them in the comments ...
3
votes
1answer
355 views

Security error WP 4.0 + WP phpBB Bridge [closed]

so today I updated to 4.0 (glad I had backup). Everything was working fine until I tried to publish a post. There I got Are you sure you want to do this. Also had Cheatin' Uh under appearance->...
10
votes
3answers
5k views

What could a hacker do with my wp-config.php

I am trying to secure my wordpress blog. I read some posts on the web that I should change my table_prefix and hide my wp-config.php. However, I do not get it? What could an attacker do with my wp-...
0
votes
1answer
36 views

Should I change the default file and folder permissions?

After reading the Hardening WordPress article I realise a good permission scheme is essential to the security of my WordPress installation. The article suggests a possible permissions scheme but my ...
1
vote
3answers
5k views

Protecting HTML5 video [closed]

I shall explain my situation as best I can so you can see where i'm coming from. I'm working on a wordpress site for a sports team, there are loads of teams. We want to put coaching sessions on our ...
1
vote
0answers
206 views

How do I get around “Sorry, this file type is not permitted for security reasons”?

I was wondering how I could allow .tiff files to be uploaded in my wordpress site. I get the message "Sorry this file type is not permitted for security reasons". This question has been asked in ...
8
votes
2answers
2k views

Why are passwords exportable as plain text in WordPress?

On my WordPress 3.9.2 installation can I extract the users plain text passwords by going to Users, select all users, and choosing Bulk Actions Export. When I look in the mySQL database with ...
1
vote
1answer
134 views

Is there a way to create a URL (new WP page) that can only be accessed from a specific source?

To explain further, here's what I"m looking to do: Create a WP page Use the URL and implement it in a reader service that is hosted (not downloadable) that in order to read (& access the URL) ...
0
votes
3answers
48 views

How can I restrict access to specific parts of a page, not just the page itself?

I looked at WP's site and didn't see a role I could use. I can create my own, but how do I limit the content on the page itself? Some private and some public information can be on the same page. I ...
0
votes
2answers
969 views

Is it necessary to use esc_url with template tags such as get_permalink?

I have been reading that sanitizing data output is important in theme / plugin development for wordpress. Is it necessary to use functions such as esc_url with template tags like get_permalink, or ...
4
votes
1answer
113 views

Why do I get accidental comments without (the required) email address?

Somebody translated one of my tutorials here (with my permission). All fine but I got comments that seem unintended on two of my tutorials that the translation links to. Now the weird thing is that ...
0
votes
2answers
113 views

Is there a way to remove the option to modify the Slug in post.php

I am trying to remove the option to edit the Permalink. I know how to hide it with CSS and I have. But a hacker could simply just go to Inspect Element and change display: none; to display: block; ...
4
votes
1answer
380 views

Run WordPress frontend and backend in different domains

I want to run my WP frontend as www.example.com and my backend (i.e. wp-admin) as user1.example.org, is it possible? The reason is I want to host lot of sites in a single server which has only 1 IP ...
-1
votes
2answers
2k views

Securing Contact Form 7 [closed]

I have a client who's website I created with Wordpress. It has a contact form created with contact form 7. This client is a subsidiary of a larger organization who's IT department runs scans on their ...
1
vote
0answers
93 views

How to allow internal links using wp_kses filtration

I'm working on front end submission and of course I want to secure data by filtering before inserting to database. The form contains repeatable fields group data which I want filter by wp_kses ...
1
vote
2answers
46 views

Would it be dangerous to send all the wp_options to javascript file?

I've noticed that wordpress allows me to send the wordpress options to javascript via wp_localize_script: wp_localize_script( $this->plugin_slug . '-plugin-script', 'wp_options', ...
2
votes
1answer
214 views

Security around save_post hook

There are a lot of examples using the save_post hook, that include adding and verifying a nonce, and checking the user has appropriate permissions before you continue. Is this necessary? When ...
0
votes
2answers
303 views

How can I password protect a WordPress site without requiring users to log in?

I don't want people to have to log in, I just want to prompt them with a question and if they can answer it, they can access the site. All the solutions and plugins that I've found seem to be overkill ...
1
vote
1answer
206 views

How can I secure a WordPress blog using OpenID from a single provider?

We're about to launch an internal blog for the company I work at. Much of the blog will be available to the public, but certain posts will be for employees only. Our intranet/extranet has an OpenID ...
2
votes
0answers
491 views

How to escape custom css?

I'm creating a WordPress theme in which I've allowed users to add some custom css from the Theme Options. This css code then directly gets echoed out in the head section of the page, with the ...
2
votes
1answer
577 views

WordPress salts set in config and database

I have come across the following code in a new clients existing website in wp-config.php define('AUTH_KEY', 'put your unique phrase here'); define('SECURE_AUTH_KEY', 'put your unique phrase ...
0
votes
0answers
53 views

Background Updates Not Happening

I have some sites which are not updating with the background updater. I installed the Background Update Tester plugin and everything looks fine. Currently they are at 3.9 but they are telling me that ...
2
votes
0answers
27 views

hSite has no css on mobile [closed]

Our WP site got hacked and we've been working with our hosting to clean all malware etc. However, now the site appears on desktop fine, but on mobile it looks as though all the css is stripped. Here'...
1
vote
1answer
2k views

What is the best method to close off the backend?

The goal: Completely remove the ability to access the WordPress backend on the production domain. Ex. return a 404 for http://example.com/wp-admin Purpose: I don't want any possibility of WordPress' ...
0
votes
0answers
36 views

Folder Permissions + Security Concerns

I messed up bad guys. I while working on another part of my website I accidentally nuked my WordPress folder permissions. I was able to find/fix some problems and I got my site up and running but some ...
0
votes
2answers
70 views

How to give the same error message when the wrong password or wrong username is used?

For security reasons, my WordPress instance should give the same error message when an incorrect password or wrong username is used. How can it be done?
2
votes
1answer
304 views

Enforcing password complexity

We need to enforce password complexity in a wordpress site, we used this article: http://www.webtipblog.com/force-password-complexity-requirements-wordpress/ We created the following in functions....
4
votes
1answer
146 views

What are the security reasons to disallow Microsoft Word uploads?

When I try uploading a .doc or .docx file I get this message: Sorry, this file type is not permitted for security reasons What are the security risks involved in a multisite installation (3.9.1)?...