Best and Cheap WordPress 5.8.1 Cloud Hosting
WordPress is an online, open source website creation tool written in PHP. But in non-geek speak, it’s probably the easiest and most powerful blogging and website content management system (or CMS) in existence today.
WordPress is a free software, this means you are free to download, install, use and modify it. You can use it to create any kind of website. It is also open source which means the source code of the software is available for any one to study, modify and play with.
Due to the nature of open source, WordPress is a community software. It is maintained by a large group of volunteers majority of whom are WordPress consultants with active interest in growing and maintaining WordPress. Anyone can contribute to WordPress by writing patches, answering support questions, writing plugins, creating themes, translating WordPress and updating documentation.
By using WordPress you become part of that awesome community. You get free support from other community members, download free plugins and themes, and once you have little experience with WordPress you can even contribute back to the community.
WordPress 5.8.1 Released to Fix Multiple Vulnerabilities
WordPress announced a security and maintenance release, version 5.8.1. It is important to update WordPress, especially versions 5.4 to 5.8 in order fix three security issues.
WordPress 5.8.1 Security and Maintenance Release
It’s not uncommon for WordPress or any software for that matter to publish a bug fix update following a major version update in order to fix unforeseen issues as well as introduce improvements that didn’t make it in time for the major release.
In WordPress those updates are called a maintenance release.
This update also includes a security update, which is somewhat uncommon for the WordPress core. That makes this update more important than the typical maintenance release.
WordPress Security Issues Fixed
WordPress 5.8.1 fixes three vulnerabilities:
- A data exposure vulnerability within the REST API
- Cross-Site Scripting (XSS) vulnerability in the Gutenberg block editor
All three of the above vulnerabilities are so concerning that the WordPress announcement recommends immediately updating WordPress installations.
REST API Vulnerability
The WordPress REST API is an interface that allows plugins and themes to interact with the WordPress core.
The REST API has been a source of security vulnerabilities, including most recently with the Gutenberg Template Library & Redux Framework vulnerability that affected over a million websites.
This vulnerability is described as a data exposure vulnerability, which means that sensitive information could be revealed. There are no other details at this time regarding what kind of information but it could be as severe as passwords to data that could be used to mount an attack through another vulnerability.
WordPress Gutenberg XSS Vulnerability
Cross-Site Scripting (XSS) vulnerabilities happen relatively frequently. They can happen whenever there is a user input like a contact or email form, any kind of input that is not “sanitized” to prevent the upload of scripts that can trigger unwanted behavior in the WordPress installation.
The Open Web Application Security Project (OWASP) describes the potential harm of XSS vulnerabilities:
“An attacker can use XSS to send a malicious script to an unsuspecting user. The end user’s browser has no way to know that the script should not be trusted, and will execute the script.
Because it thinks the script came from a trusted source, the malicious script can access any cookies, session tokens, or other sensitive information retained by the browser and used with that site. These scripts can even rewrite the content of the HTML page.”
This specific vulnerability affects the Gutenberg block editor.
The latest and safest version is Lodash 4.17.21.
The U.S. Homeland Security sponsored CVE List website details the vulnerability:
“Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.”
There appear to be many other vulnerabilities affecting the Lodash library in the 4.1.7 branch as well.
WordPress Urges Immediate Updating
These security vulnerabilities add a sense of urgency to this update. All publishers are recommended by WordPress to update.
The official WordPress announcement recommends updating:
“Because this is a security release, it is recommended that you update your sites immediately. All versions since WordPress 5.4 have also been updated.”
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