WordPress has released a security patch that greatly improved the platforms resistance to SQL injections. The release of version 4.8.3 follows a previous update that failed to mitigate the same issue. The previous fix addressed certain behaviors that could be abused, but it still contained vulnerabilities that enabled malicious plugin and theme developers to carry out SQL injection. This likely prompted WordPress to prioritize the vulnerability and issue a more thorough fix with the new update. The new update includes an additional check for double prepares.”]
Source: https://securityintelligence.com/news/wordpress-issues-security-patch-to-mitigate-sql-injection/