Multiple vulnerabilities have been reported in Horde Groupware and Horde Groupware Webmail Edition, which can be exploited by malicious people to conduct cross-site scripting and cross-site request forgery attacks.

1) The applications allow 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 certain settings by tricking a logged-in user into visiting a specially crafted website.

2) A vulnerability in icon_browser.php can be exploited by malicious people to conduct cross-site scripting attacks.

For more information:
SA41283

Solution
Update to version 1.2.7.

Provided and/or discovered by
1) Reported by Russ McRee, HolisticInfoSec via Secunia.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Horde:
http://lists.horde.org/archives/announce/2010/000567.html
http://lists.horde.org/archives/announce/2010/000568.html

Russ McRee:
http://holisticinfosec.org/content/view/145/45/

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers