CVE-2021-4458

CVE-2021-4458 describes a critical SQL Injection vulnerability in the Modern Events Calendar Lite WordPress plugin, affecting all versions up to and including 6.3.0. This flaw allows unauthenticated attackers to inject malicious SQL queries via the 'id' parameter, potentially leading to the extraction of sensitive database information. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, posing a high risk to confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.