u5CMS 3.9.3 Multiple Open Redirect Vulnerabilities

Title: u5CMS 3.9.3 Multiple Open Redirect Vulnerabilities
Advisory ID: ZSL-2015-5227
Type: Local/Remote
Impact: Spoofing
Risk: (2/5)
Release Date: 09.02.2015
u5CMS is a little, handy Content Management System for medium-sized websites, conference / congress / submission administration, review processes, personalized serial mails, PayPal payments and online surveys based on PHP and MySQL and Apache.
Input passed via the 'uri' GET parameter in 'meta2.php' script and using Cookie 'pidvesa' is not properly verified before being used to redirect users. This can be exploited to redirect a user to an arbitrary website e.g. when a user clicks a specially crafted link to the affected script hosted on a trusted domain.
Stefan P. Minder - http://www.yuba.ch
Affected Version
3.9.3 and 3.9.2
Tested On
Apache 2.4.10 (Win32)
PHP 5.6.3
MySQL 5.6.21
Vendor Status
[29.12.2014] Vulnerabilities discovered.
[04.02.2015] Contact with the vendor.
[04.02.2015] Vendor replies asking more details.
[05.02.2015] Sent details to the vendor.
[06.02.2015] Vendor releases version 3.9.4 to address these issues.
[09.02.2015] Coordinated public security advisory released.
Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>
[1] http://yuba.ch/index.php?c=u5cms&l=en
[2] http://xforce.iss.net/xforce/xfdb/100772
[3] http://cxsecurity.com/issue/WLB-2015020035
[4] http://packetstormsecurity.com/files/130317
[5] http://osvdb.org/show/osvdb/118206
[6] http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1578
[7] http://cve.mitre.org/cgi-bin/cvename.cgi?name=2015-1578
[09.02.2015] - Initial release
[11.02.2015] - Added reference [2], [3] and [4]
[12.02.2015] - Added reference [5], [6] and [7]
Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk