Moodle 1.8.x and 1.9.x before 1.9.8 does not enable the "Regenerate session id during login" setting by default, which makes it easier for remote attackers to conduct session fixation attacks.
Multiple cross-site scripting (XSS) vulnerabilities in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8 allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) the Login-As feature or (2) when the global search feature is enabled, unspecified global search forms in the Global Search Engine. NOTE: vector 1 might be resultant from a cross-site request forgery (CSRF) vulnerability.
Multiple SQL injection vulnerabilities in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8 allow remote attackers to execute arbitrary SQL commands via vectors related to (1) the add_to_log function in mod/wiki/view.php in the wiki module, or (2) "data validation in some forms elements" related to lib/form/selectgroups.php.
Moodle 1.8.x and 1.9.x before 1.9.8 can create new roles when restoring a course, which allows teachers to create new accounts even if they do not have the moodle/user:create capability.
user/view.php in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8 does not properly check a role, which allows remote authenticated users to obtain the full names of other users via the course profile page.
Cross-site scripting (XSS) vulnerability in the phpCAS client library before 1.1.0, as used in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8, allows remote attackers to inject arbitrary web script or HTML via a crafted URL, which is not properly handled in an error message.
Cross-site scripting (XSS) vulnerability in the fix_non_standard_entities function in the KSES HTML text cleaning library (weblib.php), as used in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8, allows remote attackers to inject arbitrary web script or HTML via crafted HTML entities.
Multiple cross-site request forgery (CSRF) vulnerabilities in Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 allow remote attackers to hijack the authentication of unspecified victims via unknown vectors.
The LAMS module (mod/lams) for Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 stores the (1) username, (2) firstname, and (3) lastname fields within the user table, which allows attackers to obtain user account information via unknown vectors.
mod/glossary/showentry.php in the Glossary module for Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 does not properly perform access control, which allows attackers to read unauthorized Glossary entries via unknown vectors.