As Jason Ryan wrote here (bold by me):
“Hello all -Ok, so I have found that if you are using the Free version of Wordfence, the “Rules” are only updated every 30 days – which means that this is completely out of sync with the release of WP 6.7.If you go to Wordfence -> All Options -> Advanced Firewall Options -> Manually Refresh Rules and then run a new Scan, this resolves the issue (test one site thus far and seemed to do the trick).Wordfence changed this a bit ago where the rules are only updated once every 30 days – not sure this was a great idea on Wordfence’s part.”
I tested this right away and it works!