Weston Ruter

This plugin enforces a <a href="https://web.dev/articles/strict-csp" rel="nofollow ugc">Strict Content Security Policy</a> (CSP) on the frontend and login screen. This helps mitigate <a href="https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/XSS" rel="nofollow ugc">cross-site scripting</a> (XSS) vulnerabilities. The policy cannot yet be applied to the WP Admin (see <a href="https://core.trac.wordpress.org/ticket/59446" rel="nofollow ugc">#59446</a>).
In <a href="https://core.trac.wordpress.org/ticket/58664" rel="nofollow ugc">#58664</a>, the manual construction of script tags was eliminated from <code>WP_Scripts</code> and inline scripts on frontend/login screen, thanks to the helper functions which had previously been introduced in <a href="https://core.trac.wordpress.org/ticket/39941" rel="nofollow ugc">#39941</a>. This made it possible to apply Strict CSP, as long as themes and plugins are not directly printing <code><script></code> tags. Some bundled WordPress core themes <a href="https://github.com/search?q=repo%3AWordPress%2Fwordpress-develop+path%3A%2F%5Esrc%5C%2Fwp-content%5C%2Fthemes%5C%2F%2F+%2F%3Cscript%5B%5E%3E%5D*%3E%2F&type=code" rel="nofollow ugc">still do this</a> incorrectly (which has been reported in Trac as <a href="https://core.trac.wordpress.org/ticket/63806" rel="nofollow ugc">#63806</a>). For example, do not do this:
<pre>function my_theme_supports_js() {
 echo '<script>document.body.classList.remove("no-js");</script>'; // ❌
}
add_action( 'wp_footer', 'my_theme_supports_js' );</pre>
Instead, do this:
<pre>function my_theme_supports_js() {
 wp_print_inline_script_tag( 'document.body.classList.remove("no-js");' ); // ✅
}
add_action( 'wp_footer', 'my_theme_supports_js' );</pre>
So in order for scripts to execute, they must be printed using the relevant APIs in WordPress for adding scripts, including <a href="https://developer.wordpress.org/reference/functions/wp_enqueue_script/" rel="nofollow ugc"><code>wp_enqueue_script()</code></a>, <a href="https://developer.wordpress.org/reference/functions/wp_add_inline_script/" rel="nofollow ugc"><code>wp_add_inline_script()</code></a>, <a href="https://developer.wordpress.org/reference/functions/wp_localize_script/" rel="nofollow ugc"><code>wp_localize_script()</code></a>, <a href="https://developer.wordpress.org/reference/functions/wp_print_script_tag/" rel="nofollow ugc"><code>wp_print_script_tag()</code></a>, <a href="https://developer.wordpress.org/reference/functions/wp_print_inline_script_tag/" rel="nofollow ugc"><code>wp_print_inline_script_tag()</code></a>, and <a href="https://developer.wordpress.org/reference/functions/wp_enqueue_script_module/" rel="nofollow ugc"><code>wp_enqueue_script_module()</code></a>. Otherwise, a script’s execution will be blocked and an error will appear in the console, for example:
<blockquote>
Refused to execute inline script because it violates the following Content Security Policy directive: “script-src ‘nonce-9b539cfe47’ ‘unsafe-inline’ ‘strict-dynamic’ https: http:”. Note that ‘unsafe-inline’ is ignored if either a hash or nonce value is present in the source list.
</blockquote>
This also blocks scripts inside of <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes#event_handler_attributes" rel="nofollow ugc">event handler attributes</a>, such as <code>onclick</code>, <code>onchange</code>, <code>onsubmit</code>, and <code>onload</code>. As noted on MDN:
<blockquote>
Warning: The use of event handler content attributes is discouraged. The mix of HTML and JavaScript often produces unmaintainable code, and the execution of event handler attributes may also be blocked by content security policies.
</blockquote>
This plugin also ensures that scripts added to the page from embeds (e.g. Tweets) also get the <code>nonce</code> attribute added.

Strict CSP

Enforces a Strict Content Security Policy on the frontend and login screen to help mitigate any XSS vulnerabilities.

WPChef

nikita.global

<a href="https://www.limitloginattempts.com" rel="nofollow ugc">Limit Login Attempts Reloaded</a> functions as a robust deterrent against <a href="https://www.limitloginattempts.com/cracking-the-code-unveiling-the-mechanics-behind-brute-force-attacks/" rel="nofollow ugc">brute force attacks</a>, bolstering your website’s security measures and optimizing its performance. It achieves this by restricting the number of login attempts allowed. This applies not only to the standard login method, but also to XMLRPC, Woocommerce, and custom login pages. With more than 2.5 million active users, this plugin fulfills all your login security requirements.
The plugin functions by automatically preventing further attempts from a particular Internet Protocol (IP) address and/or username once a predetermined limit of retries has been surpassed. This significantly weakens the effectiveness of brute force attacks on your website.
By default, WordPress permits an unlimited number of login attempts, posing a vulnerability where passwords can be easily deciphered through brute force methods.
Limit Login Attempts Reloaded Premium (Try Free with <a href="https://www.limitloginattempts.com/premium-security-zero-cost-discover-the-benefits-of-micro-cloud/" rel="nofollow ugc">Micro Cloud</a>) 
Upgrade to <a href="https://www.limitloginattempts.com/plans/" rel="nofollow ugc">Limit Login Attempts Reloaded Premium</a> to extend cloud-based protection to the Limit Login Attempts Reloaded plugin, thereby enhancing your login security. The premium version includes a range of highly beneficial features, including <a href="https://www.limitloginattempts.com/features/ip-intelligence/" rel="nofollow ugc">IP intelligence</a> to detect, counter and deny malicious login attempts. Your <a href="https://www.limitloginattempts.com/failed-login-attempts-in-wordpress/" rel="nofollow ugc">failed login attempts</a> will be safely neutralized in the cloud so your website can function at its optimal performance during an attack.
<iframe loading="lazy" title="Why Upgrading to Our Premium Version is a Game-Changer for Brute Force Protection" width="750" height="422" src="https://www.youtube.com/embed/JfkvIiQft14?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
<h4>Features (Free Version):</h4>
<ul>
<li>Limit Logins – Limit the number of retry attempts when logging in (per each IP).</li>
<li>Configurable Lockout Timings – Modify the amount of time a user or IP must wait after a lockout.</li>
<li>Remaining Tries – Informs the user about the remaining retries or lockout time on the login page.</li>
<li>Lockout Email Notifications – Informs the admin via email of lockouts.</li>
<li>Denied Attempt Logs – View a log of all denied attempts and lockouts.</li>
<li>IP & Username Safelist/Denylist – Control access to usernames and IPs.</li>
<li>New User Registration Protection (Micro Cloud Accounts) – Protects default WP registration.</li>
<li>Sucuri compatibility.</li>
<li>Wordfence compatibility.</li>
<li>Ultimate Member compatibility.</li>
<li>WPS Hide Login compatibility.</li>
<li>MemberPress compatibility.</li>
<li>XMLRPC gateway protection.</li>
<li>Woocommerce login page protection.</li>
<li>Multi-site compatibility with extra MU settings.</li>
<li>GDPR compliant.</li>
<li>Custom IP origins support (Cloudflare, Sucuri, etc.).</li>
<li>llar_admin own capability.</li>
</ul>
<h4>Features (Premium Version):</h4>
<ul>
<li>Performance Optimizer – Offload the burden of excessive failed logins from your server to protect your server resources, resulting in improved speed and efficiency of your website.</li>
<li>Enhanced IP Intelligence – Identify repetitive and suspicious login attempts to detect potential brute force attacks. IPs with known malicious activity are stored and used to help prevent and counter future attacks.</li>
<li>Enhanced Throttling – Longer lockout intervals each time a malicious IP or username tries to login unsuccessfully.</li>
<li>Deny By Country – <a href="https://www.limitloginattempts.com/block-logins-by-country-in-wordpress/" rel="nofollow ugc">Block logins by country</a> by simply selecting the countries you want to deny.</li>
<li>Auto IP Denylist – Automatically add IP addresses to your active cloud deny list that repeatedly fail login attempts.</li>
<li>New User Registration Protection – Protects default WP registration.</li>
<li>Global Denylist Protection – Utilize our active cloud IP data from thousands of websites in the LLAR network.</li>
<li>Synchronized Lockouts – Lockout IP data can be shared between multiple domains for enhanced protection in your network.</li>
<li>Synchronized Safelist/Denylist – Safelist/Denylist IP and username data can be shared between multiple domains.</li>
<li>Premium Support – Email support with a security tech.</li>
<li>Auto Backups of All IP Data – Store your active IP data in the cloud.</li>
<li>Successful Logins Log – Store successful logins in the cloud including IP info, city, state and lat/long.</li>
<li>Enhanced lockout logs – Gain valuable insights into the origins of IPs that are attempting logins.</li>
<li>CSV Download of IP Data – Download IP data direclty from the cloud.</li>
<li>Supports IPV6 Ranges For Safelist/Denylist</li>
<li>Unlock The Locked Admin – Easily <a href="https://www.limitloginattempts.com/how-to-unlock-your-site-if-you-are-locked-out-by-limit-login-attempts-reloaded/" rel="nofollow ugc">unlock the locked admin</a> through the cloud.</li>
</ul>
*Some features require higher level plans.
<h4>Upgrading from the old Limit Login Attempts plugin?</h4>
<ol>
<li>Go to the Plugins section in your site’s backend.</li>
<li>Remove the Limit Login Attempts plugin.</li>
<li>Install the Limit Login Attempts Reloaded plugin.</li>
</ol>
All your settings will be kept intact!
Many languages are currently supported in the Limit Login Attempts Reloaded plugin but we welcome any additional ones.
Help us bring Limit Login Attempts Reloaded to even more countries.
Translations: Bulgarian, Brazilian Portuguese, Catalan, Chinese (Traditional), Czech, Dutch, Finnish, French, German, Hungarian, Norwegian, Persian, Romanian, Russian, Spanish, Swedish, Turkish
Plugin uses standard actions and filters only.
Based on the original code from Limit Login Attempts plugin by Johan Eenfeldt.
<h4>Branding Guidelines</h4>
Limit Login Attempts Reloaded™ is a trademark of Atlantic Silicon Inc. When writing about the plugin, please make sure to use Reloaded after Limit Login Attempts. Limit Login Attempts is the old plugin.
<ul>
<li>Limit Login Attempts Reloaded (correct)</li>
<li>Limit Login Attempts (incorrect)</li>
</ul>

Limit Login Attempts Reloaded – Login Security, Brute Force Protection, Firewall

Love that it shows how many attempts are left, so hopefully users don't lock themselves out. Also ought to deter hackers if they see that... and if it doesn't, then they get locked out anyway :)

It works great!


некоторое время работал, потом, видимо, пришло обновление и капец - начало просто всех подряд блокировать. Зайти в админку невозможно


перестал нормально работать

Just excellent

Block excessive login attempts and protect your site against brute force attacks. Simple, yet powerful tools to improve site performance.

Strict CSP vs Limit Login Attempts Reloaded – Login Security, Brute Force Protection, Firewall