This vulnerability is highly dangerous and expected to become exploited.
Please note that this vulnerability only affects the premium/pro version of the wpDataTables plugin. Since both free and premium versions use the same slug and name, they are not distinct from each other and fall under the same slug.
This could allow a malicious actor to directly interact with your database, including but not limited to stealing information.
CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way but which is not ideal for WordPress.
We advise to mitigate or resolve the vulnerability immediately.
Patchstack has issued a mitigation rule to block any attacks until you have updated to a fixed version.
Update to version 3.4.2 or later to resolve the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.