The identity-reporting implementations in mod/forum/renderer.php and mod/quiz/override_form.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 do not properly restrict the display of e-mail addresses, which allows remote authenticated users to obtain sensitive information by using the (1) Forum or (2) Quiz module.

The identity-reporting implementations in mod/forum/renderer.php and mod/quiz/override_form.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 do not properly restrict the display of e-mail addresses, which allows remote authenticated users to obtain sensitive information by using the (1) Forum or (2) Quiz module.

The identity-reporting implementations in mod/forum/renderer.php and m ...

The wiki subsystem in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly restrict (1) view and (2) edit access, which allows remote authenticated users to perform wiki operations by leveraging the student role and using the Recent Activity block to reach the individual wiki of an arbitrary student.

The wiki subsystem in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly restrict (1) view and (2) edit access, which allows remote authenticated users to perform wiki operations by leveraging the student role and using the Recent Activity block to reach the individual wiki of an arbitrary student.

The wiki subsystem in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x ...

mod/chat/chat_ajax.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly check for the mod/chat:chat capability during chat sessions, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by remaining in a chat session after an intra-session capability removal by an administrator.

mod/chat/chat_ajax.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly check for the mod/chat:chat capability during chat sessions, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by remaining in a chat session after an intra-session capability removal by an administrator.

mod/chat/chat_ajax.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2 ...

Multiple cross-site request forgery (CSRF) vulnerabilities in user/profile/index.php in Moodle through 2.2.11, 2.3.x before 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 allow remote attackers to hijack the authentication of administrators for requests that delete (1) categories or (2) fields.

Multiple cross-site request forgery (CSRF) vulnerabilities in user/profile/index.php in Moodle through 2.2.11, 2.3.x before 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 allow remote attackers to hijack the authentication of administrators for requests that delete (1) categories or (2) fields.

Multiple cross-site request forgery (CSRF) vulnerabilities in user/pro ...

course/loginas.php in Moodle through 2.2.11, 2.3.x before 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 does not enforce the moodle/site:accessallgroups capability requirement for outside-group users in a SEPARATEGROUPS configuration, which allows remote authenticated users to perform "login as" actions via a direct request.

course/loginas.php in Moodle through 2.2.11, 2.3.x before 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 does not enforce the moodle/site:accessallgroups capability requirement for outside-group users in a SEPARATEGROUPS configuration, which allows remote authenticated users to perform "login as" actions via a direct request.

course/loginas.php in Moodle through 2.2.11, 2.3.x before 2.3.11, 2.4. ...

lib/adminlib.php in Moodle through 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 logs cleartext passwords, which allows remote authenticated administrators to obtain sensitive information by reading the Config Changes Report.

lib/adminlib.php in Moodle through 2.3.11, 2.4.x before 2.4.8, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 logs cleartext passwords, which allows remote authenticated administrators to obtain sensitive information by reading the Config Changes Report.

lib/adminlib.php in Moodle through 2.3.11, 2.4.x before 2.4.8, 2.5.x b ...

badges/external.php in Moodle 2.5.x before 2.5.2 does not properly handle an object obtained by unserializing a description of an external badge, which allows remote attackers to conduct PHP object injection attacks via unspecified vectors, as demonstrated by overwriting the value of the userid parameter.

badges/external.php in Moodle 2.5.x before 2.5.2 does not properly handle an object obtained by unserializing a description of an external badge, which allows remote attackers to conduct PHP object injection attacks via unspecified vectors, as demonstrated by overwriting the value of the userid parameter.