Multiple cross-site scripting (XSS) vulnerabilities in the course-tags functionality in tag/coursetags_more.php in Moodle 2.0.x before 2.0.2 allow remote attackers to inject arbitrary web script or HTML via the (1) sort or (2) show parameter.

Moodle 2.0.x before 2.0.3 allows remote authenticated users to cause a denial of service (invalid database records) via a series of crafted comments operations.

The default configuration of Moodle 2.0.x before 2.0.2 has an incorrect setting of the moodle/course:delete capability, which allows remote authenticated users to delete arbitrary courses by leveraging the teacher role.

Cross-site scripting (XSS) vulnerability in the Spike PHPCoverage (aka spikephpcoverage) library, as used in Moodle 2.0.x before 2.0.2 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The error-message functionality in Moodle 1.9.x before 1.9.13, 2.0.x before 2.0.4, and 2.1.x before 2.1.1 does not ensure that a continuation link refers to an http or https URL for the local Moodle instance, which might allow attackers to trick users into visiting arbitrary web sites via unspecified vectors.

Multiple cross-site request forgery (CSRF) vulnerabilities in mod/wiki/ components in Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 allow remote attackers to hijack the authentication of arbitrary users for requests that modify wiki data.

Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 allows remote attackers to bypass intended access restrictions and perform global searches by leveraging the guest role and making a direct request to a URL.

mod/forum/user.php in Moodle 1.9.x before 1.9.14, 2.0.x before 2.0.5, and 2.1.x before 2.1.2 allows remote authenticated users to discover the names of other users via unspecified vectors.

lib/db/upgrade.php in Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 does not set the correct registration_hubs.secret value during installation, which allows remote attackers to bypass intended access restrictions by leveraging the hubs feature.

The file_browser component in Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 does not properly restrict access to category and course data, which allows remote attackers to obtain potentially sensitive information via a request for a file.