www.eVuln.com advisory:
"search" - Non-persistent XSS in Social Share
Summary: http://evuln.com/vulns/169/summary.html 
Details: http://evuln.com/vulns/169/description.html 

-----------Summary-----------
eVuln ID: EV0169
Software: Social Share
Vendor: n/a
Version: 2010-06-05
Critical Level: low
Type: Cross Site Scripting
Status: Unpatched. No reply from developer(s)
PoC: Available
Solution: Not available
Discovered by: Aliaksandr Hartsuyeu ( http://evuln.com/ )

--------Description--------
It is possible to inject xss code into "search" parameter in
"search.php" script.
Parameter "search" is not properly sanitized before being used in HTML
code.

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

Non-persistent XSS Example.

XSS example: http://website/socialshare/search.php?search=<XSS>

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

----------Credit-----------
Vulnerability discovered by Aliaksandr Hartsuyeu
http://evuln.com/code-analysis.html - source code analysis service