wordpress 出现“I'm not a robot”是不是被挂马了？

今天看自己的 wp 站突然蹦出来个“I'm not a robot“，点击后的页面显示如下，不知道怎么传图，直接复制文本了：
Complete these
Verification Steps
To better prove you are not a robot, please:

Open Terminal application on your Mac (you can find it in Applications -> Utilities -> Terminal).
In the verification window, press Command + V.
Press Enter on your keyboard to finish.
You will observe and agree:
✅ "I am not a robot - reCAPTCHA Verification ID: 5413551"

Perform the steps above to finish verification.
Verify

已经把所有插件都禁用了，还是没找到问题出在哪里，登录后不显示，退出登录后就显示这个。