Strengthening themes, plugins and core installation to prevent intrusion.

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3
votes
1answer
50 views

Is sanitize_text_field() is enough to save to DB?

So here is the situation. We allow users to enter input data, i.e. user_first_name and user_additional_comments. Then we use sanitize_text_field() , which is named as save. But after this filter: ...
3
votes
2answers
105 views

Is /wp-login.php?redirect_to[] exploitable?

I have a wordpress site, against which I ran a penetration testing tool (debug mode was on at the time) It reported a (medium severity) issue in that errors were being displayed, and cited /wp-...
3
votes
1answer
93 views

Garbage in beginning of wp-config.php - was this WP installation compromised?

I hadn't realized that one of my WP sites wasn't being accessed in the last months, and consequently not being updated, and today I have found that my config.php has some garbage in the beginning of ...
3
votes
1answer
1k views

When to use esc_url, esc_html, esc_attr, and friends?

Discovered esc_url today while customizing an _s theme. I understand what the function does (sanitizes the URL inside), but what I'm unsure of is the scope of its use. It makes sense to me that if I'...
3
votes
1answer
956 views

Generate Wordpress salt

I am in need of a function that automatically generates and returns salts for Wordpress wp-config.php (Don't link me to their API, I'm looking for offline solution). Does Wordpress core has this ...
3
votes
1answer
1k views

What is the difference between strip_tags and wp_filter_nohtml_kses?

What is the difference between strip_tags and wp_filter_nohtml_kses. I tried to figure wp_filter_nohtml_kses from the source but it looks like it does something a bit more complex than strip all html ...
3
votes
2answers
640 views

Setting WP Admin passwords to expire

I'm aware it's not a feature of Wordpress, but I was wondering if there was a way or a plug-in (haven't found one from searching) that allows me to force a user to change their password after a ...
3
votes
2answers
6k views

Password protect some uploaded files, so only logged-in users can view them

I would like to protect some uploaded files, so that they are not publicly accessible (they are not accessible without a login). I'm uploading some PDF files, and I'd like to mark some of them as ...
3
votes
1answer
162 views

Why allow overriding crucial pluggable functions wp_verify_nonce and wp_create_nonce?

Among the functions in /wp-includes/pluggable.php are the functions wp_verify_nonce and wp_create_nonce. Both functions are very important in the protection against CSRF-attacks. However, it is easy ...
3
votes
1answer
350 views

Allow Profile HTML for select users

I know there are a ton of post out there about how to allow html in profiles. Most of these warn about the security risk of doing so. My thinking is there has to be a way to only allow users to use ...
3
votes
1answer
3k views

Masking logout URL

The primary goal is to hide that the site is driven by wordpress. I've got the login part all locked up, but the logout URL still has those blasted wp delineators that give away it's a wordpress site. ...
3
votes
3answers
1k views

Options for restricting access to wp-admin

So i've installed a plug-in which allows me to enable two-factor authentication for my users. The problem is that to enable the plug-in i have to log in as that user and enable it via their profile ...
3
votes
1answer
486 views

Do Cookies Need to be Sanatized Before Being Saved?

I recently wrote a plugin and now I'm backtracking a bit to sanitize any and all user input. I know that I should sanitize anything that comes from $_GET or $_POST as a user can insert malicious ...
3
votes
2answers
2k views

How do I create a WP user outside of Wordpress and auto login?

I've built a directory of members on a non-WP site (using php and mysql). Each member can log in and update their details using a username and password. I want to be able to get this to automatically ...
3
votes
4answers
1k views

ensure user can only be logged in on one computer at a time?

how can i make sure a user can only be logged in on one computer at a time? I want to make a wordpress site that could potentially have paid accounts for content in the future. Is there anything built ...
3
votes
2answers
811 views

Can I force a password change?

When I create a new user, I would like to force that user to change their password on first log in, can this be done?
3
votes
1answer
37 views

Extra themes - ok or bad?

I know I am a newbie here, but I'm just wondering, if you keep extra themes in your Wordpress setup, will it add bloat to your site? Can these other themes provide a security risk even if they aren't ...
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->...
3
votes
3answers
261 views

How to Block Access to Standard Login Flow and Comment Flow

I've set up custom flows on my Wordpress blog for login, signup, and commenting. I would like to password protect the standard login flow so only I can use it, and block access entirely to the ...
3
votes
1answer
304 views

WordPress Capabilities: edit_user vs edit_users

The official documentation only mentions edit_users, but in the source I found many places are using edit_user, what is the difference? Are there any conventions for singular and plural capabilities? ...
3
votes
1answer
4k views

How to make media upload private? [duplicate]

Possible Duplicate: How to Protect Uploads, if User is not Logged In? I know how to mark a Page or Post as visible only to members, using the Member Access plugin. This way, the public cannot ...
3
votes
0answers
592 views

WordPress it's cleaning a custom query_var to avoid sql injections?

I am using get_query_var function to get a custom query_var. This query_var will be used later in to query arguments to retrieve posts with: $the_query = new WP_Query( $args ); . My question is, ...
3
votes
3answers
77 views

Strategies for coping with hyperagressive spambots?

A couple of my sites are getting slammed by a hyperagressive distributed spambot. It's just pure link spam. It all comes from one user name, but from a variety of IPs. Akismet is catching the spam, ...
3
votes
0answers
877 views

How to get WordPress to save upload file beyond web root

I am using nginx on a multisite install. I am trying to get WordPress to save uploads to a folder beyond the webroot : /home/mydomain/file_secure as opposed to /home/mydomain/public_html/wp-...
3
votes
1answer
438 views

Disallow file edit not preventing plugin install

I have a little demo site (admin details are listed publicly), and I've configured the wp-config.php to disallow file edits, so in theory no one can install a theme / plugin. define( '...
3
votes
0answers
385 views

comment_post_ID 0 (cannot remove from dashboard)

Ran across something a bit odd that I haven't seen before. A client has a pretty active blog and uses Akismet (paid) to protect against spam. At least once a day, they're reporting a spam comment that ...
3
votes
2answers
1k views

Has anyone experience w/ WordPress (MultiSite) hidden users (possibly hacked)?

I have 2 WordPress MultiSite installs (on different accounts, but under the same HostGator reseller a/c) and both seem to have been compromised. I say "compromised" because the user_logins have been ...
2
votes
3answers
540 views

How brute-forcer knows that the password is cracked for target username?

There are very many brute-force attacks (mostly for 'admin' username) on WordPress sites. All these attacks are made automatically via post requests. The question 1: how brute-forcer knows that the ...
2
votes
3answers
116 views

Why users disable the WordPress update?

Users install plugins which disable update reminders. Plugins: disable WordPress Core Updates disable WordPress Plugin Updates disable WordPress Theme Updates Look at the counter of plugins ...
2
votes
4answers
130 views

How to properly secure my Wordpress installation?

I'm currently on my own server (fredericpilon.com) with my own website. Wordpress being kind of a big shot of CMS, it may be targeted by hacks. Any tips and tricks on how to properly secure my ...
2
votes
2answers
106 views

Is security a problem in Wordpress?

I am going to start a big corporate website for his car shop which is supposed be more secured. Is Wordpress okay to start a secured and reliable website? As far as i heard, Wordpress hackers ...
2
votes
4answers
268 views

Will WordPress username displayed somewhere in the site?

I am considering enforcing all my users to use email as their login name. But I am afraid that the username is being used somewhere that is publicly accessible, e.g. author pages, such as that it will ...
2
votes
2answers
97 views

Can someone (Support of my themeprovider) get access to my server If I send them my admin login?

I have bought a WP theme from a huge provider (themeforest). But it has a lot of bugs. The support asked me to send my WP Admin Login/Password. What risk does this have? I know the supportstaff will ...
2
votes
2answers
50 views

Is the “lost password” feature truly a vulnerability?

Disabling Password Resets I've come across numerous security hardening articles relating to various measures for disabling password resets (i.e. lost password retrieval). https://www.google.com/...
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 ...
2
votes
1answer
158 views

How is password strength calculated?

A password, that contains: at least one capital letter, at least one small letter, at least one number and at least one non-alphanumeric character, is considered moderate to strong (sometimes even ...
2
votes
3answers
3k views

How to properly validate data from $_GET or $_REQUEST using WordPress functions?

I am working on a plugin that requires on-the-fly manipulation of content output. This is solely dependent on the current $_GET variable or $_REQUEST variable. Depending on what the variable is set ...
2
votes
1answer
249 views

Wordpress Malware Problem help! [duplicate]

Possible Duplicate: Wordpress Trojan issue help! I accessed the wordpress website I am building and received a warning about a trojan from my anti virus software. I have now checked the site ...
2
votes
1answer
1k views

What is the relationship between cURL, WordPress and cacert.pem?

I've run into a problem concerning wp_remote_get() and the underlying cURL call. On some WordPress installations I see the following SSL error: httprequest_failed: SSL certificate problem, verify ...
2
votes
1answer
34 views

Staging Site: Made Public - Security Questions

Previously, our staging site has been locked down to local access only. We hired a third party developer to assist with resolving a theme via our 'local staging server' remotely. In order to grant ...
2
votes
1answer
51 views

Is revealing just the AUTH_KEY a security issue?

I am troubleshooting a Wordpress plugin issue. It is a plugin that generates a zip file of existing files on the server and returns a link to download the file. The plugin https://wordpress.org/...
2
votes
1answer
440 views

Confusion on WP Nonce usage in my Plugin

I created a small plugin where users can set multiple featured image by clicking Add New link from the meta box and remove them as well. The user can use Set featured image link to select featured ...
2
votes
2answers
114 views

Best Way to Enable Two Step Authentication

I'm looking for a bit of guidance on setting up a two step authentication system in WordPress. I've looked at a few of the main plugins and they seem to fall in to two camps: Add an extra field to ...
2
votes
2answers
844 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.
2
votes
1answer
62 views

Do you need to escape hard coded plain text?

I started playing with the Underscores starter theme and noticed it uses esc_html_e() even on plain text: <a class="skip-link" href="#content"><?php esc_html_e( 'Skip to content', '_s' ); ?&...
2
votes
1answer
210 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 ...
2
votes
1answer
569 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 ...
2
votes
1answer
635 views

Is $wpdb->prepare escaping to much? How to use it properly?

Im pretty much confused by $wpdb->prepare. I want to use it to sanitize user input but it turned out that it destroys the query. I cannot imagine that this is how it's intended to work but I can't ...
2
votes
1answer
659 views

Securing my WordPress Files and Directories

I am new to WordPress and securely hosting it on Amazon EC2. My question is, how do I secure my WordPress files and directories properly? My file permissions are set to 644 and my directories are ...
2
votes
1answer
201 views

Protecting against malicious code in Wordpress plugin updates

One of the most popular Wordpress plugins listed on the Wordpress plugins database got malicious code injected into it recently (April 2013): http://blog.sucuri.net/2013/04/wordpress-plugin-social-...