Office applications must not load XML expansion packs with Smart Documents.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223294 | O365-CO-000012 | SV-223294r961863_rule | CCI-000366 | medium |
| Description | ||||
| This policy setting controls whether Office 365 ProPlus applications can load an XML expansion pack manifest file with a Smart Document. | ||||
| STIG | Date | |||
| Microsoft Office 365 ProPlus Security Technical Implementation Guide | 2025-03-05 | |||
Details
Check Text (C-223294r961863_chk)
Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Office 2016 >> Smart Documents (Word, Excel) >> Disable Smart Document's use of manifests is set to "Enabled".
Use the Windows Registry Editor to navigate to the following key:
HKCU\software\policies\microsoft\office\common\smart tag
If the value for neverloadmanifests is REG_DWORD = 1, this is not a finding.
Fix Text (F-24955r442102_fix)
Set the policy value for User Configuration >> Administrative Templates >> Microsoft Office 2016 >> Smart Documents (Word, Excel) >> Disable Smart Document's use of manifests to "Enabled".