Horde IMP 4.0.4 and earlier does not sanitize strings containing UTF16 null characters, which allows remote attackers to conduct cross-site scripting (XSS) attacks via UTF16 encoded attachments and strings that will be executed when viewed using Internet Explorer, which ignores the characters.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Imp | Horde | 2.0 (including) | 2.0 (including) |
| Imp | Horde | 2.2 (including) | 2.2 (including) |
| Imp | Horde | 2.2.1 (including) | 2.2.1 (including) |
| Imp | Horde | 2.2.2 (including) | 2.2.2 (including) |
| Imp | Horde | 2.2.3 (including) | 2.2.3 (including) |
| Imp | Horde | 2.2.4 (including) | 2.2.4 (including) |
| Imp | Horde | 2.2.5 (including) | 2.2.5 (including) |
| Imp | Horde | 2.2.6 (including) | 2.2.6 (including) |
| Imp | Horde | 2.2.7 (including) | 2.2.7 (including) |
| Imp | Horde | 2.2.8 (including) | 2.2.8 (including) |
| Imp | Horde | 2.3 (including) | 2.3 (including) |
| Imp | Horde | 3.0 (including) | 3.0 (including) |
| Imp | Horde | 3.1 (including) | 3.1 (including) |
| Imp | Horde | 3.1.2 (including) | 3.1.2 (including) |
| Imp | Horde | 3.2 (including) | 3.2 (including) |
| Imp | Horde | 3.2.1 (including) | 3.2.1 (including) |
| Imp | Horde | 3.2.2 (including) | 3.2.2 (including) |
| Imp | Horde | 3.2.3 (including) | 3.2.3 (including) |
| Imp | Horde | 3.2.4 (including) | 3.2.4 (including) |
| Imp | Horde | 3.2.5 (including) | 3.2.5 (including) |
| Imp | Horde | 4.0 (including) | 4.0 (including) |
| Imp | Horde | 4.0.1 (including) | 4.0.1 (including) |
| Imp | Horde | 4.0.2 (including) | 4.0.2 (including) |
| Imp | Horde | 4.0.3 (including) | 4.0.3 (including) |
| Imp | Horde | 4.0.4 (including) | 4.0.4 (including) |