Mathcad 12 through 13.1 allows local users to bypass the security features by directly accessing or editing the XML representation of the worksheet with a text editor or other program, which allows attackers to (1) bypass password protection by replacing the password field with a hash of a known password, (2) modify timestamps to avoid detection of modifications, (3) remove locks by removing the is-locked attribute, and (4) view locked data, which is stored in plaintext.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_2000 | Microsoft | * | * |
| Windows_2003_server | Microsoft | sp2 (including) | sp2 (including) |
| Windows_95 | Microsoft | * | * |
| Windows_98 | Microsoft | * | * |
| Windows_98se | Microsoft | * | * |
| Windows_me | Microsoft | * | * |
| Windows_nt | Microsoft | 4.0 (including) | 4.0 (including) |
| Windows_xp | Microsoft | * | * |