High load due to wp-admin/admin-ajax.php abuse | Spam attacks

  • Hello,

    it was reported by our hoster that there were spam attacks via the rating function. The site also went offline for a short time because the load was heavy.

    You can also make requests via the CURL function, which is not particularly optimal and only leads to spam attacks. Are there any ways to prevent spam attacks? So at plugin level?

    Version: 1.91.2

    Best regards

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