Secunia

Some vulnerabilities have been reported in Moodle, which can potentially be exploited by malicious, local users to perform certain actions with escalated privileges, by malicious users to conduct script insertion attacks or to compromise a vulnerable system, and by malicious people to conduct cross-site scripting attacks or to disclose sensitive information.

1) A vulnerability is caused due to the use of a vulnerable version of Snoopy.

For more information:
SA32361

2) Unspecified input related to "HTML block" is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a users browser session in context of an affected site when "Login as" is used and "MyMoodle" or the blog page of the attacker is viewed.

3) Some security issues are caused due to the lib/editor/htmlarea/plugins/SpellChecker/spell-check-logic.cgi script creating temporary files in an insecure manner, which can be exploited to e.g. overwrite arbitrary files via symlink attacks.

4) An unspecified error within the Calendar export can potentially be exploited to disclose sensitive information.

5) Input passed via log reports is not properly sanitised before being used. This can potentially be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in the context of an affected site when the malicious data is viewed.

6) A vulnerability is caused due to the application allowing users to perform certain actions via HTTP requests without performing validity checks to verify the request. This can be exploited to e.g. delete forum posts when a logged-in user is tricked into visiting a malicious web page.

Solution
Update to version 1.9.4, 1.8.8, 1.7.7, or 1.6.9.

Provided and/or discovered by
The vendor credits
1) Nigel McNie
2) The Rat
4) Daniel Cabezas
5) Full Name
6) Kevin Madura

Changelog
Further details available in Customer Area

Original Advisory
Moodle (MSA-09-0003, MSA-09-0004, MSA-09-0005, MSA-09-0006, MSA-09-0008):
http://moodle.org/security/

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area