The MHTML protocol handler in Microsoft Outlook Express 5.5 SP2 through Outlook Express 6 SP1 allows remote attackers to bypass domain restrictions and execute arbitrary code, as demonstrated on Internet Explorer using script in a compiled help (CHM) file that references the InfoTech Storage (ITS) protocol handlers such as (1) ms-its, (2) ms-itss, (3) its, or (4) mk:@MSITStore, aka the MHTML URL Processing Vulnerability.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Outlook_express | Microsoft | 5.5 (including) | 5.5 (including) |
| Outlook_express | Microsoft | 6.0 (including) | 6.0 (including) |