Spam attacks that target WordPress sites have been on the rise over the last few years, and one of the preferred attack vectors is known as SQL injection. In this type of cyber attack, hackers send commands that take advantage of database vulnerabilities; these commands are then sent through a server for execution, thus taking over control of the back-end content management system in the process. The spam portion of the attack happens when hackers try to take advantage of the website ranking on the Google search engine results page (SERP) for certain keywords. In the end, WP site administrators are left with thousands of spam pages that hackers hope will dupe some visitors.
A recent discussion on a forum dedicated to search engine optimization topics dealt with this problem and the ways it can be prevented. When it comes to WP sites that require back-end databases, not all SQL injection situations can be avoided because of the myriad permutations of possible database calls and queries. Notwithstanding this issue, the "Security by Default" feature of WP can be enacted in order to protect against some, but not necessarily all, SQL injections. Another problem is that the CMS back-end of WP is pretty much standard; hackers know this, and they write scripts that can publish hundreds of spam pages in minutes once they have taken control. To this effect, implementing some custom CMS functionality would be another way to mitigate against these attacks.
Security by Default is a CMS solution developed for the purpose of throwing off attackers; it is fully configurable for each site and is an ideal solution for many WP sites, but no so much for e-commerce shops. WordFence is another security essential that should be installed by all WP site administrators. Some website hosting service providers are starting to offer annual security options that include incremental backups and recovery on the fly; at the cost of less than $20 a year, they are very reasonable mitigation tools for your website. Mitigation is the key because website administrators must assume that getting hacked is not something they can fully prevent anymore; it is more important to be able to respond adequately. For more information click here https://www.reddit.com/r/SEO/comments/mol2f1/wordpresswebsitehacked16mpagesshowsinsearch/.