Please have a look at this vulnerabilities article: "www dot secunia dot com/advisories/35173/"
it contains 3 Vulnerabilities in acollab system "www dot atutor dot ca/acollab/"
can you help me with a fix for them??



The Article:

Description:
Russ McRee has discovered some vulnerabilities in ACollab, which can be exploited by malicious users to conduct script insertion attacks and by malicious people to conduct cross-site scripting and cross-site request forgery attacks.

1) Input passed to the "f" parameter in sign_in.php is not properly sanitised 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 e.g. the "address" parameter in profile.php or the "description" parameter in events/add_event.php is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session when the malicious data is viewed.

3) 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. add members or groups when a logged-in administrator visits a specially crafted web page.

The vulnerabilities are confirmed in version 1.2. Other versions may also be affected.