This is very strange, but within a day of my site going live, the comment form on three of the pages began receiving (and thus emailing) bursts of comment spam.
I then set up a recaptcha for the form (tested and works), but these same three pages still get hammered with comment spam.
I unpublished the three pages for 24 hours and all spam stopped. Not a single comment form was filled out for any of the other 100+ pages on the site. I then republished those three pages and within ONE MINUTE they started emailing spam again.
I have cleared the site cache and deleted and re-created the three problematic pages and this has not fixed the problem. I installed analytics software to try and catch an IP address and nothing is caught.
Every comment submitted looks something like this and they get sent out in bursts of 12 messages (meaning each of the three forms gets spammed 4 times all within a minute)…
Name: lJyIOuXSbWRDHa
Email: ross.studio3@gmail.com
Comment: mOgrRZos
: New Exhaust
: /new-exhaust
Name: RNKilLSgF
Email: shaunbinner@gmail.com
Comment: UMmXwWosrhZ
: New Exhaust -- Part 2
: /new-exhaust-part-2
Name: OwfUlkdMPpXKnQj
Email: garrett@usfca.edu
Comment: FHBQbuizTpGEwOLr
: Ball-Joint Exhaust Update
: /ball-joint-exhaust-update
I’ve compared the three pages with numerous other pages on the site and the format of the item.md file for everything is practically identical with only the content being changed.
NOW HERE’S THE REALLY BIZARRE PART!
What do these three pages have in common? They all have the word exhaust in the URL.
https://www.wittmantailwind.com/ball-joint-exhaust-update
https://www.wittmantailwind.com/new-exhaust
https://www.wittmantailwind.com/new-exhaust-part-2
If I change that word exhaust for something else such as XXYYZZ, the spamming has stopped.
FWIW, I’m still using the BetterComments plugin for the comment form at the bottom of every “post”.