A backdoor is a malicious file which could allow a malicious actor to gain access and exploit your website at any time they desire. One example would be to execute a payload to inject advertisements on your website.
CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way but which is not ideal for WordPress.
This security issue has a low severity impact and is unlikely to be exploited.
Update to version 4.0.8 or later to remove the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.
Early warning sent out to Patchstack customers
3 Jul, 2024
Published by Patchstack
3 Jul, 2024