In mass infection scenarios, our Malware Research team often looks for attack vectors to find patterns and other similarities among compromised websites. The identification of these patterns allows us to deploy better and faster solutions to our customers, minimizing impacts from massive attacks.
Recently during a routine investigation, we found a number of vulnerabilities in 123contactform-for-wordpress WordPress Plugin Version <= 1.5.6. These critical vulnerabilities allow attackers to arbitrarily create posts and inject malicious files to the website without any form of authentication.
Source: Scuri check