BugTraq
[eVuln] Chipmunk Guestbook XSS Vulnerability Jan 01 2006 10:58PM
alex evuln com
New eVuln Advisory:
Chipmunk Guestbook XSS Vulnerability

--------------------Summary----------------
Vendor: Chipmunk (http://www.chipmunk-scripts.com/)
Software: Chipmunk Guestbook
Versions: 1.4 and earlier
Critical Level: Harmless
Type: Cross-Site Scripting
Class: Remote
Status: Unpatched
Exploit: Available
Solution: Not Available
Discovered by: Aliaksandr Hartsuyeu (alex (at) evuln (dot) com [email concealed])
Published: 2005.12.29
eVuln ID: EV0004

-----------------Description--------------
Vulnerable script:
addentry.php

Variable $homepage isn't properly sanitized. This can be used to post arbitrary script code which will be executed in the browser of every guestbook visitor.
Cookie-based authentication is threatened.

--------------Exploit---------------------
Add an entry form:
http://somesite/guestbook/addentry.php

Homepage value: '></a><script>alert(123);</script>

--------------Solution---------------------
No Patch available.

--------------Credit---------------------
Original Advisory:
http://evuln.com/vulns/4/summary.html

Discovered by: Aliaksandr Hartsuyeu (alex (at) evuln (dot) com [email concealed])

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