Some vulnerabilities have been reported in Moodle, which can be exploited by malicious users to conduct script insertion attacks and by malicious people to conduct cross-site scripting, script insertion, and cross-site request forgery attacks.
1) Certain input passed to the MNET access control interface is not properly sanitised before used. This can be exploited to inject and execute arbitrary HTML and script code in a user's browser session in context of an affected site when malicious data is being viewed.
Successful exploitation requires that MNET is enabled and the server allows extended characters in usernames.
2) Certain unspecified input passed to the blog index page 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.
3) Insufficient filtering functions within lib/weblib.php and can be exploited to bypass HTML filtering policies and e.g. conduct script insertion attacks.
Successful exploitation requires a valid user account.
4) 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. delete certain quiz reports by tricking a user into visiting a specially crafted site.
Solution: Update to version 1.8.13 or 1.9.9 or apply patches (see vendor's advisories for details).
Provided and/or discovered by: 4) Reported by the vendor.
The vendor credits:
1, 3) Sascha Herzog
2) Emmanuel Bouillon
Original Advisory: 1) http://moodle.org/mod/forum/discuss.php?d=152366
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
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Subject: Moodle Multiple Vulnerabilities
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