w-CMS Multiple Vulnerabilities
Release Date: 2012-01-11
Last Update: 2013-08-16
Criticality level : Moderately critical
Impact : Cross Site Scripting
Exposure of sensitive information
Where : From remote
Solution Status : Unpatched
Software: w-CMS 2.x
Multiple vulnerabilities have been discovered in w-CMS, which can be exploited by malicious users to compromise a vulnerable system and by malicious people to disclose sensitive information and conduct cross-site scripting, script insertion, and cross-site request forgery attacks.
1) Input passed via the "p" parameter to index.php is not properly sanitised in the "getMenus()" function in codes/wcms.php before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
2) Input passed via the "COMMENT" parameter to index.php is not properly sanitised before being used in codes/blog.php, codes/guestbook.php, or codes/forum.php. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious data is being viewed.
3) Input passed via the "p" parameter to index.php is not properly verified in the "getContent()" function in codes/wcms.php before being used to read files. This can be exploited to disclose the contents of arbitrary files from local resources via directory traversal sequences.
4) Input passed via the "fieldname" and "htmlArea" parameters to codes/updatecontent.php is not properly verified and sanitised before being used to save files. This can be exploited to execute arbitrary PHP code.
5) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. change an administrator's password by tricking a logged in administrator into visiting a malicious web site.
6) The admin.php script allows upload of files with arbitrary extensions to a folder inside the webroot. This can be exploited to execute arbitrary PHP code by uploading a malicious PHP script.
Successful exploitation of this vulnerability requires administrator privileges.
The vulnerabilities are confirmed in version 2.01. Other versions may also be affected.
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