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// graph-permissions · Sites

Sites.FullControl.AllMicrosoft Graph permission · Critical risk

Allows the app to have full control of all site collections without a signed in user.

Application permission

Critical risk

Have full control of all site collections. Allows the app to have full control of all site collections without a signed in user.

IDa82116e5-55eb-4c41-a434-62fe8a61c773
ConsentAlways needs admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

Delegated permission

Critical risk

Have full control of all site collections. Allows the application to have full control of all site collections on behalf of the signed-in user.

ID5a54b8b3-347c-476d-8f8e-42d5c7424d29
ConsentNeeds admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

Least-privilege alternative

Use Sites.Selected with the narrowest role on specific sites.

Grant it to an app

In the portal: App registrations › your app › API permissions › Add a permission › Microsoft Graph › Application permissions, then grant admin consent. Or with Graph PowerShell:

powershell5 lines
Connect-MgGraph -Scopes "Application.Read.All", "AppRoleAssignment.ReadWrite.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
$app   = Get-MgServicePrincipal -Filter "appId eq '<your app's client id>'"
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $app.Id `
    -PrincipalId $app.Id -ResourceId $graph.Id -AppRoleId "a82116e5-55eb-4c41-a434-62fe8a61c773"

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "Sites.FullControl.All"

Which apps already have it?

powershell6 lines
# Apps that hold Sites.FullControl.All as an application permission
Connect-MgGraph -Scopes "Application.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgServicePrincipalAppRoleAssignedTo -ServicePrincipalId $graph.Id -All |
    Where-Object AppRoleId -eq "a82116e5-55eb-4c41-a434-62fe8a61c773" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for Sites.FullControl.All
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "Sites.FullControl.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other Sites permissions

Check every app in your tenant → Permission explainer

Sources