Description
WordPress Plugin Related Sites is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Related Sites version 2.1 is vulnerable; other versions may also be affected.
Remediation
Update to the latest version
References
Related Vulnerabilities
WordPress Cross-Site Scripting Vulnerability (3.9.3 - 4.2)
Joomla Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2012-0837)
WordPress Plugin Shopping Cart & eCommerce Store Cross-Site Request Forgery (5.1.0)
TYPO3 Improper Input Validation Vulnerability (CVE-2010-4068)