Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
The Rank Math plugin is fully secure and we audit our plugin by 3rd party security firms every 3 months as you can see here: https://rankmath.com/kb/is-rank-math-safe-to-use/
Can you please share how you confirmed the malicious code was injected by using the Rank Math plugin?
Looking forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.