1. OVERVIEW
Acuity CMS 2.6.x (ASP-based) versions are vulnerable to Cross Site Scripting.
2. BACKGROUND
Acuity CMS is a powerful but simple, extremely easy to use, low
priced, easy to deploy content management system. It is a leader in
its price and feature class.
3. VULNERABILITY DESCRIPTION
"UserName" parameter is not properly sanitized upon submission to the
URL, /admin/login.asp , which allows attacker to conduct Cross Site
Scripting attack. This may allow an attacker to create a specially
crafted URL that would execute arbitrary script code in a victim's
browser.
4. VERSIONS AFFECTED
Tested in version 2.6.2.
5. PROOF-OF-CONCEPT/EXPLOIT
http://localhost/admin/login.asp?UserName="><script>prompt(/xss/)</script>
6. SOLUTION
The Acunity CMS is no longer in active development.
It is recommended to user another CMS in active development and support.
7. VENDOR
The Collective
http://www.thecollective.com.au/
8. CREDIT
Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.
9. DISCLOSURE TIME-LINE
2012-04-17: vulnerability disclosed
10. REFERENCES
Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/%5Bacuity_cms2.6.x_(asp)%5D_xss
#yehg [2012-04-17]
