Compatibility issue with wp show posts?

First thing to look at as soon as that happens is the Audit Trail. This will detail exactly what is being blocked and why.

You can then either:
1) Turn of the firewall option that is blocking, or
2) White list the parameter that’s triggering the firewall block. You can do that manually, or there’ll be a link in the Audit Trail to do that.

To learn a bit more about whitelisting parameters:
https://support.getshieldsecurity.com/support/solutions/articles/3000070467

Or you can paste what you see here and we’ll help you with the whitelisting.

If you feel it’s a common parameter that “everyone” should have whitelisted, drop us the details and we’ll add it to our default whitelist for everyone in the next release.

So this was in the audit log:

`Auto Black List offenses counter was incremented from 1 to 2.
Firewall Trigger: WordPress Terms.
Page parameter failed firewall check.
The offending parameter was “post_type” with a value of “wp_show_posts”.
Firewall Block Response: Visitor connection was killed with wp_die() and a message.

Is it safe to whitelist post_type?

Thanks

Yep, it’s safe to do that. We’ll probably add that to the default whitelist in the next release.