The issue occurs due to lack of validation on incoming requests. SSRF allows an attacker to inject malicious code on your website and hack your website by using this technique. The attacker can perform any type of hacking activity and steal any data from your WordPress website. As the attacker can control the source of the request, he can change the content of the data to steal any data he wants and send it to the attacker’s website. In order to exploit this vulnerability, the attacker needs to know the plugin version and the API Key of WordPress. The attacker needs to know the plugin version and API Key of All in One SEO plugin. This vulnerability can be exploited by an attacker to hack your website. The attacker can inject malicious code or steal any data from your website. All in One SEO plugin version 4.2.5.1 and below are vulnerable to this issue. You must upgrade your plugin to version 4.2.6 to secure your WordPress site from this severe vulnerability.

All in One SEO plugin

All in One SEO plugin is an SEO plugin that helps you optimize your WordPress website for search engines. It provides a variety of tools, including SEO features, so that you can get the most out of your website with as little effort as possible.

All in One SEO plugin version 4.2.5.1 and below are vulnerable to this issue

. You must upgrade your plugin to version 4.2.6 to secure your WordPress site from this severe vulnerability.
All in One SEO plugin version 4.2.5.1 and below are vulnerable to this issue when using WPSEO by Yoast plugin with the All in One SEO plugin, which leads to a security breach of your website. This is an important update for WordPress users who use WPSEO and the All in One SEO plugin together, as it patches this major security flaw that can be exploited by hackers.

Steps to protect your website from All in One SEO plugin SSRF vulnerability

The best procedure to secure your website from this vulnerability is to upgrade your plugin to version 4.2.6 as soon as possible after reading this report. If you have already updated the plugin, then you need to check the access logs of your website to see if any attacks have been made on these vulnerable versions of All in One SEO plugin.

1) Go to your WordPress dashboard; 2) Click on "All in One SEO" under plugins; 3) Now click on "Settings"; 4) Scroll down and find "API Key"; 5) Enter an API key and save it; 6) At the bottom of the settings page, you will see a section for "WORDPRESS_PLUGIN_SIGNING" enter a new signature for All in One SEO plugin that is generated by this tool and save it; 7) In order to validate the signature, type in http://example.com/?wp-json&wp=wc-api-version&ver=4.2.5 or http://example.com/?wp-json&wp=wc-api-version&ver=4.2.6 into the address bar; 8) If you get a JSON response with code 404, then you have successfully updated your plugin's signature which makes it harder for attackers to exploit this vulnerability

Description of The All in One SEO Plugin Vulnerability

The vulnerability is caused by lack of validation on incoming requests by the plugin. The vulnerability is due to the lack of validation on incoming requests, which allows an attacker to inject malicious code and hack your website.

Timeline

Published on: 11/08/2022 19:15:00 UTC
Last modified on: 11/09/2022 13:52:00 UTC

References