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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Moodle | Moodle | * | 2.3.11 (including) |
| Moodle | Moodle | 2.0.0 (including) | 2.0.0 (including) |
| Moodle | Moodle | 2.0.1 (including) | 2.0.1 (including) |
| Moodle | Moodle | 2.0.2 (including) | 2.0.2 (including) |
| Moodle | Moodle | 2.0.3 (including) | 2.0.3 (including) |
| Moodle | Moodle | 2.0.4 (including) | 2.0.4 (including) |
| Moodle | Moodle | 2.0.5 (including) | 2.0.5 (including) |
| Moodle | Moodle | 2.0.6 (including) | 2.0.6 (including) |
| Moodle | Moodle | 2.0.7 (including) | 2.0.7 (including) |
| Moodle | Moodle | 2.0.8 (including) | 2.0.8 (including) |
| Moodle | Moodle | 2.0.9 (including) | 2.0.9 (including) |
| Moodle | Moodle | 2.1.0 (including) | 2.1.0 (including) |
| Moodle | Moodle | 2.1.1 (including) | 2.1.1 (including) |
| Moodle | Moodle | 2.1.2 (including) | 2.1.2 (including) |
| Moodle | Moodle | 2.1.3 (including) | 2.1.3 (including) |
| Moodle | Moodle | 2.1.4 (including) | 2.1.4 (including) |
| Moodle | Moodle | 2.1.5 (including) | 2.1.5 (including) |
| Moodle | Moodle | 2.1.6 (including) | 2.1.6 (including) |
| Moodle | Moodle | 2.1.7 (including) | 2.1.7 (including) |
| Moodle | Moodle | 2.1.8 (including) | 2.1.8 (including) |
| Moodle | Moodle | 2.1.9 (including) | 2.1.9 (including) |
| Moodle | Moodle | 2.1.10 (including) | 2.1.10 (including) |
| Moodle | Moodle | 2.2.0 (including) | 2.2.0 (including) |
| Moodle | Moodle | 2.2.1 (including) | 2.2.1 (including) |
| Moodle | Moodle | 2.2.2 (including) | 2.2.2 (including) |
| Moodle | Moodle | 2.2.3 (including) | 2.2.3 (including) |
| Moodle | Moodle | 2.2.4 (including) | 2.2.4 (including) |
| Moodle | Moodle | 2.2.5 (including) | 2.2.5 (including) |
| Moodle | Moodle | 2.2.6 (including) | 2.2.6 (including) |
| Moodle | Moodle | 2.2.7 (including) | 2.2.7 (including) |
| Moodle | Moodle | 2.2.8 (including) | 2.2.8 (including) |
| Moodle | Moodle | 2.2.9 (including) | 2.2.9 (including) |
| Moodle | Moodle | 2.2.10 (including) | 2.2.10 (including) |
| Moodle | Moodle | 2.2.11 (including) | 2.2.11 (including) |
| Moodle | Moodle | 2.3.0 (including) | 2.3.0 (including) |
| Moodle | Moodle | 2.3.1 (including) | 2.3.1 (including) |
| Moodle | Moodle | 2.3.2 (including) | 2.3.2 (including) |
| Moodle | Moodle | 2.3.3 (including) | 2.3.3 (including) |
| Moodle | Moodle | 2.3.4 (including) | 2.3.4 (including) |
| Moodle | Moodle | 2.3.5 (including) | 2.3.5 (including) |
| Moodle | Moodle | 2.3.6 (including) | 2.3.6 (including) |
| Moodle | Moodle | 2.3.7 (including) | 2.3.7 (including) |
| Moodle | Moodle | 2.3.8 (including) | 2.3.8 (including) |
| Moodle | Moodle | 2.3.9 (including) | 2.3.9 (including) |
| Moodle | Moodle | 2.3.10 (including) | 2.3.10 (including) |
| Moodle | Moodle | 2.4.0 (including) | 2.4.0 (including) |
| Moodle | Moodle | 2.4.1 (including) | 2.4.1 (including) |
| Moodle | Moodle | 2.4.2 (including) | 2.4.2 (including) |
| Moodle | Moodle | 2.4.3 (including) | 2.4.3 (including) |
| Moodle | Moodle | 2.4.4 (including) | 2.4.4 (including) |
| Moodle | Moodle | 2.4.5 (including) | 2.4.5 (including) |
| Moodle | Moodle | 2.4.6 (including) | 2.4.6 (including) |
| Moodle | Moodle | 2.4.7 (including) | 2.4.7 (including) |
| Moodle | Moodle | 2.4.8 (including) | 2.4.8 (including) |
| Moodle | Moodle | 2.5.0 (including) | 2.5.0 (including) |
| Moodle | Moodle | 2.5.1 (including) | 2.5.1 (including) |
| Moodle | Moodle | 2.5.2 (including) | 2.5.2 (including) |
| Moodle | Moodle | 2.5.3 (including) | 2.5.3 (including) |
| Moodle | Moodle | 2.5.4 (including) | 2.5.4 (including) |
| Moodle | Moodle | 2.6.0 (including) | 2.6.0 (including) |
| Moodle | Moodle | 2.6.1 (including) | 2.6.1 (including) |