D52/100

ms-365-mcp-server

mcp0.114.0

@Softeria

A Model Context Protocol (MCP) server for interacting with Microsoft 365 and Office services through the Graph API

By Softeria | 726 findings | Scanned 6/3/2026 | tooltrust-scanner/v0.3.13 | 753

216 High123 Medium387 Low

Risk Summary

Block in Production

Excessive Permissions + Supply Chain CVEs risk is significant. Avoid using this in production agents.

Potential impact: The agent may gain overly broad access to files, network, databases, or execution capabilities.

Recommended action: This tool should stay disabled in production agents until the flagged risks are fixed and the scan is clean.

{
  "mcpServers": {
    "ms-365-mcp-server": {
      "disabled": true
    }
  }
}

Security Findings (726)

HighAS-004
📦Supply Chain CVEs (OSV) ×178
GO-2026-5024 in golang.org/x/[email protected]: Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows (upgrade to 0.44.0)
loginlogoutverify-loginlist-accountsselect-accountremove-accountgraph-batchget-drive-itemmove-rename-onedrive-itemdelete-onedrive-filelist-folder-filescreate-onedrive-folderupload-file-contentcopy-drive-itemcreate-drive-item-share-linkcreate-upload-sessionget-drive-deltashare-drive-itemlist-drive-item-permissionsdelete-drive-item-permissioncreate-drive-item-previewlist-drive-item-thumbnailslist-drive-item-versionslist-excel-tablesget-excel-tablelist-excel-table-rowsadd-excel-table-rowsupdate-excel-table-rowdelete-excel-table-rowlist-excel-worksheetscreate-excel-chartsort-excel-rangeget-excel-rangeupdate-excel-rangeclear-excel-rangedelete-excel-rangeformat-excel-rangeinsert-excel-rangemerge-excel-rangeunmerge-excel-rangecreate-excel-tableget-excel-used-rangeget-drive-root-itemsearch-onedrive-filesget-current-userlist-my-calendar-permissionscreate-my-calendar-permissionupdate-my-calendar-permissiondelete-my-calendar-permissionlist-calendarscreate-calendarupdate-calendardelete-calendarget-specific-calendar-viewlist-specific-calendar-eventscreate-specific-calendar-eventget-specific-calendar-eventupdate-specific-calendar-eventdelete-specific-calendar-eventlist-calendar-event-instancesget-calendar-viewlist-calendar-view-deltalist-contact-folderscreate-contact-folderupdate-contact-folderdelete-contact-folderlist-contact-folder-child-folderscreate-contact-child-folderlist-contact-folder-contactscreate-contact-in-folderlist-outlook-contactscreate-outlook-contactget-outlook-contactupdate-outlook-contactdelete-outlook-contactlist-driveslist-calendar-eventscreate-calendar-eventget-calendar-eventupdate-calendar-eventdelete-calendar-eventaccept-calendar-eventcancel-calendar-eventdecline-calendar-eventdismiss-calendar-event-reminderforward-calendar-eventsnooze-calendar-event-remindertentatively-accept-calendar-eventlist-calendar-events-deltaget-mail-tipslist-focused-inbox-overridescreate-focused-inbox-overrideupdate-focused-inbox-overridedelete-focused-inbox-overrideget-mailbox-settingsupdate-mailbox-settingslist-mail-folderscreate-mail-folderupdate-mail-folderdelete-mail-folderlist-mail-child-folderscreate-mail-child-folderlist-mail-rulescreate-mail-ruleupdate-mail-ruledelete-mail-rulelist-mail-folder-messageslist-mail-folder-messages-deltalist-mail-messagescreate-draft-emailget-mail-messageupdate-mail-messagedelete-mail-messageget-mail-message-mimelist-mail-attachmentsadd-mail-attachmentdelete-mail-attachmentcreate-mail-attachment-upload-sessioncopy-mail-messagecreate-forward-draftcreate-reply-draftcreate-reply-all-draftforward-mail-messagemove-mail-messagereply-mail-messagereply-all-mail-messagesend-draft-messagelist-onenote-notebookscreate-onenote-notebooklist-onenote-notebook-sectionscreate-onenote-sectionlist-onenote-pagescreate-onenote-pagedelete-onenote-pageget-onenote-page-contentlist-onenote-section-groupslist-all-onenote-sectionslist-onenote-section-pagescreate-onenote-section-pagelist-outlook-categoriescreate-outlook-categorylist-supported-languageslist-supported-time-zonesupload-my-profile-photolist-planner-taskssend-maillist-todo-task-listscreate-todo-task-listupdate-todo-task-listdelete-todo-task-listlist-todo-taskscreate-todo-taskget-todo-taskupdate-todo-taskdelete-todo-tasklist-todo-linked-resourcescreate-todo-linked-resourcedelete-todo-linked-resourcecreate-planner-bucketget-planner-bucketupdate-planner-bucketdelete-planner-bucketget-planner-planlist-plan-bucketslist-plan-taskscreate-planner-taskget-planner-taskupdate-planner-taskget-planner-task-detailsupdate-planner-task-detailslist-subscriptionscreate-subscriptionget-subscriptionupdate-subscriptiondelete-subscriptionreauthorize-subscriptionparse-teams-urldownload-bytes
Fix: Upgrade or replace the vulnerable dependency. Pin all dependency versions and enable automated CVE scanning (Dependabot or OSV Scanner).
HighAS-002
⚠️Excessive Permissions ×38
tool declares network permission
graph-batchget-drive-itemcopy-drive-itemcreate-drive-item-share-linkcreate-upload-sessionlist-drive-item-permissionscreate-drive-item-previewlist-drive-item-thumbnailslist-drive-item-versionssearch-onedrive-filesget-specific-calendar-viewget-calendar-viewlist-calendar-view-deltacancel-calendar-eventlist-calendar-events-deltalist-mail-folder-messageslist-mail-folder-messages-deltalist-mail-messagesget-mail-message-mimelist-mail-attachmentscreate-mail-attachment-upload-sessioncreate-reply-draftcreate-reply-all-draftforward-mail-messagereply-mail-messagereply-all-mail-messageupload-my-profile-photolist-todo-linked-resourcescreate-todo-linked-resourcelist-subscriptionscreate-subscriptionget-subscriptionparse-teams-urldownload-bytes
tool declares exec permission
get-subscriptionupdate-subscriptiondelete-subscriptionreauthorize-subscription
Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
MediumAS-002
⚠️Excessive Permissions ×123
tool declares fs permission
remove-accountget-drive-itemmove-rename-onedrive-itemdelete-onedrive-filelist-folder-filescreate-onedrive-folderupload-file-contentcopy-drive-itemcreate-drive-item-share-linkcreate-upload-sessionshare-drive-itemlist-drive-item-permissionsdelete-drive-item-permissioncreate-drive-item-previewlist-drive-item-thumbnailslist-drive-item-versionsupdate-excel-table-rowdelete-excel-table-rowcreate-excel-chartupdate-excel-rangedelete-excel-rangecreate-excel-tableget-drive-root-itemsearch-onedrive-filescreate-my-calendar-permissionupdate-my-calendar-permissiondelete-my-calendar-permissioncreate-calendarupdate-calendardelete-calendarcreate-specific-calendar-eventupdate-specific-calendar-eventdelete-specific-calendar-eventlist-contact-folderscreate-contact-folderupdate-contact-folderdelete-contact-folderlist-contact-folder-child-folderscreate-contact-child-folderlist-contact-folder-contactscreate-contact-in-folderlist-outlook-contactscreate-outlook-contactget-outlook-contactupdate-outlook-contactdelete-outlook-contactcreate-calendar-eventupdate-calendar-eventdelete-calendar-eventcancel-calendar-eventcreate-focused-inbox-overrideupdate-focused-inbox-overridedelete-focused-inbox-overrideupdate-mailbox-settingslist-mail-folderscreate-mail-folderupdate-mail-folderdelete-mail-folderlist-mail-child-folderscreate-mail-child-folderlist-mail-rulescreate-mail-ruleupdate-mail-ruledelete-mail-rulelist-mail-folder-messageslist-mail-folder-messages-deltacreate-draft-emailupdate-mail-messagedelete-mail-messagelist-mail-attachmentsadd-mail-attachmentdelete-mail-attachmentcreate-mail-attachment-upload-sessioncopy-mail-messagecreate-forward-draftcreate-reply-draftcreate-reply-all-draftforward-mail-messagemove-mail-messagereply-mail-messagereply-all-mail-messagesend-draft-messagecreate-onenote-notebookcreate-onenote-sectioncreate-onenote-pagedelete-onenote-pagelist-onenote-section-groupscreate-onenote-section-pagecreate-outlook-categoryupload-my-profile-photosend-mailcreate-todo-task-listupdate-todo-task-listdelete-todo-task-listcreate-todo-taskupdate-todo-taskdelete-todo-taskcreate-todo-linked-resourcedelete-todo-linked-resourcecreate-planner-bucketupdate-planner-bucketdelete-planner-bucketcreate-planner-taskupdate-planner-taskupdate-planner-task-detailscreate-subscriptionupdate-subscriptiondelete-subscriptiondownload-bytes
tool declares db permission
search-onedrive-filesget-current-userget-specific-calendar-viewlist-calendar-event-instancesget-calendar-viewlist-calendar-view-deltalist-contact-folderslist-contact-folder-contactslist-mail-folderslist-mail-child-folderslist-mail-folder-messageslist-mail-folder-messages-deltalist-mail-messagescreate-onenote-page
Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
LowAS-002
⚠️Excessive Permissions ×215
tool declares http permission
graph-batchget-drive-itemmove-rename-onedrive-itemdelete-onedrive-filelist-folder-filescreate-onedrive-folderupload-file-contentcopy-drive-itemcreate-drive-item-share-linkcreate-upload-sessionget-drive-deltashare-drive-itemlist-drive-item-permissionsdelete-drive-item-permissioncreate-drive-item-previewlist-drive-item-thumbnailslist-drive-item-versionslist-excel-tablesget-excel-tablelist-excel-table-rowsadd-excel-table-rowsupdate-excel-table-rowdelete-excel-table-rowlist-excel-worksheetscreate-excel-chartsort-excel-rangeget-excel-rangeupdate-excel-rangeclear-excel-rangedelete-excel-rangeformat-excel-rangeinsert-excel-rangemerge-excel-rangeunmerge-excel-rangecreate-excel-tableget-excel-used-rangeget-drive-root-itemsearch-onedrive-filesget-current-userlist-my-calendar-permissionscreate-my-calendar-permissionupdate-my-calendar-permissiondelete-my-calendar-permissionlist-calendarscreate-calendarupdate-calendardelete-calendarget-specific-calendar-viewlist-specific-calendar-eventscreate-specific-calendar-eventget-specific-calendar-eventupdate-specific-calendar-eventdelete-specific-calendar-eventlist-calendar-event-instancesget-calendar-viewlist-calendar-view-deltalist-contact-folderscreate-contact-folderupdate-contact-folderdelete-contact-folderlist-contact-folder-child-folderscreate-contact-child-folderlist-contact-folder-contactscreate-contact-in-folderlist-outlook-contactscreate-outlook-contactget-outlook-contactupdate-outlook-contactdelete-outlook-contactlist-driveslist-calendar-eventscreate-calendar-eventget-calendar-eventupdate-calendar-eventdelete-calendar-eventaccept-calendar-eventcancel-calendar-eventdecline-calendar-eventdismiss-calendar-event-reminderforward-calendar-eventsnooze-calendar-event-remindertentatively-accept-calendar-eventlist-calendar-events-deltaget-mail-tipslist-focused-inbox-overridescreate-focused-inbox-overrideupdate-focused-inbox-overridedelete-focused-inbox-overrideget-mailbox-settingsupdate-mailbox-settingslist-mail-folderscreate-mail-folderupdate-mail-folderdelete-mail-folderlist-mail-child-folderscreate-mail-child-folderlist-mail-rulescreate-mail-ruleupdate-mail-ruledelete-mail-rulelist-mail-folder-messageslist-mail-folder-messages-deltalist-mail-messagescreate-draft-emailget-mail-messageupdate-mail-messagedelete-mail-messageget-mail-message-mimelist-mail-attachmentsadd-mail-attachmentdelete-mail-attachmentcreate-mail-attachment-upload-sessioncopy-mail-messagecreate-forward-draftcreate-reply-draftcreate-reply-all-draftforward-mail-messagemove-mail-messagereply-mail-messagereply-all-mail-messagesend-draft-messagelist-onenote-notebookscreate-onenote-notebooklist-onenote-notebook-sectionscreate-onenote-sectionlist-onenote-pagescreate-onenote-pagedelete-onenote-pageget-onenote-page-contentlist-onenote-section-groupslist-all-onenote-sectionslist-onenote-section-pagescreate-onenote-section-pagelist-outlook-categoriescreate-outlook-categorylist-supported-languageslist-supported-time-zonesupload-my-profile-photolist-planner-taskssend-maillist-todo-task-listscreate-todo-task-listupdate-todo-task-listdelete-todo-task-listlist-todo-taskscreate-todo-taskget-todo-taskupdate-todo-taskdelete-todo-tasklist-todo-linked-resourcescreate-todo-linked-resourcedelete-todo-linked-resourcecreate-planner-bucketget-planner-bucketupdate-planner-bucketdelete-planner-bucketget-planner-planlist-plan-bucketslist-plan-taskscreate-planner-taskget-planner-taskupdate-planner-taskget-planner-task-detailsupdate-planner-task-detailslist-subscriptionscreate-subscriptionget-subscriptionupdate-subscriptiondelete-subscriptionreauthorize-subscription
input schema exposes 13 properties (threshold: 10)
list-folder-filesget-drive-deltalist-drive-item-permissionslist-drive-item-thumbnailslist-drive-item-versionslist-excel-tableslist-excel-worksheetssearch-onedrive-fileslist-calendar-view-deltalist-calendar-eventslist-calendar-events-deltalist-mail-child-folderslist-mail-folder-messages-deltalist-todo-linked-resources
input schema exposes 14 properties (threshold: 10)
list-excel-table-rowslist-specific-calendar-events
input schema exposes 11 properties (threshold: 10)
list-my-calendar-permissionslist-calendarslist-contact-folderslist-outlook-contactslist-driveslist-focused-inbox-overrideslist-onenote-notebookslist-onenote-pageslist-onenote-section-groupslist-all-onenote-sectionslist-outlook-categorieslist-planner-taskslist-todo-task-listslist-subscriptions
input schema exposes 16 properties (threshold: 10)
get-specific-calendar-view
input schema exposes 17 properties (threshold: 10)
list-calendar-event-instances
input schema exposes 15 properties (threshold: 10)
get-calendar-view
input schema exposes 12 properties (threshold: 10)
list-contact-folder-child-folderslist-contact-folder-contactslist-mail-folderslist-mail-ruleslist-mail-folder-messageslist-mail-messageslist-mail-attachmentslist-onenote-notebook-sectionslist-onenote-section-pageslist-todo-taskslist-plan-bucketslist-plan-tasks
Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
LowAS-011
ℹ️Missing Rate-Limit / Timeout ×172
tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration
graph-batchget-drive-itemmove-rename-onedrive-itemdelete-onedrive-filelist-folder-filescreate-onedrive-folderupload-file-contentcopy-drive-itemcreate-drive-item-share-linkcreate-upload-sessionget-drive-deltashare-drive-itemlist-drive-item-permissionsdelete-drive-item-permissioncreate-drive-item-previewlist-drive-item-thumbnailslist-drive-item-versionslist-excel-tablesget-excel-tablelist-excel-table-rowsadd-excel-table-rowsupdate-excel-table-rowdelete-excel-table-rowlist-excel-worksheetscreate-excel-chartsort-excel-rangeget-excel-rangeupdate-excel-rangeclear-excel-rangedelete-excel-rangeformat-excel-rangeinsert-excel-rangemerge-excel-rangeunmerge-excel-rangecreate-excel-tableget-excel-used-rangeget-drive-root-itemsearch-onedrive-filesget-current-userlist-my-calendar-permissionscreate-my-calendar-permissionupdate-my-calendar-permissiondelete-my-calendar-permissionlist-calendarscreate-calendarupdate-calendardelete-calendarget-specific-calendar-viewlist-specific-calendar-eventscreate-specific-calendar-eventget-specific-calendar-eventupdate-specific-calendar-eventdelete-specific-calendar-eventlist-calendar-event-instancesget-calendar-viewlist-calendar-view-deltalist-contact-folderscreate-contact-folderupdate-contact-folderdelete-contact-folderlist-contact-folder-child-folderscreate-contact-child-folderlist-contact-folder-contactscreate-contact-in-folderlist-outlook-contactscreate-outlook-contactget-outlook-contactupdate-outlook-contactdelete-outlook-contactlist-driveslist-calendar-eventscreate-calendar-eventget-calendar-eventupdate-calendar-eventdelete-calendar-eventaccept-calendar-eventcancel-calendar-eventdecline-calendar-eventdismiss-calendar-event-reminderforward-calendar-eventsnooze-calendar-event-remindertentatively-accept-calendar-eventlist-calendar-events-deltaget-mail-tipslist-focused-inbox-overridescreate-focused-inbox-overrideupdate-focused-inbox-overridedelete-focused-inbox-overrideget-mailbox-settingsupdate-mailbox-settingslist-mail-folderscreate-mail-folderupdate-mail-folderdelete-mail-folderlist-mail-child-folderscreate-mail-child-folderlist-mail-rulescreate-mail-ruleupdate-mail-ruledelete-mail-rulelist-mail-folder-messageslist-mail-folder-messages-deltalist-mail-messagescreate-draft-emailget-mail-messageupdate-mail-messagedelete-mail-messageget-mail-message-mimelist-mail-attachmentsadd-mail-attachmentdelete-mail-attachmentcreate-mail-attachment-upload-sessioncopy-mail-messagecreate-forward-draftcreate-reply-draftcreate-reply-all-draftforward-mail-messagemove-mail-messagereply-mail-messagereply-all-mail-messagesend-draft-messagelist-onenote-notebookscreate-onenote-notebooklist-onenote-notebook-sectionscreate-onenote-sectionlist-onenote-pagescreate-onenote-pagedelete-onenote-pageget-onenote-page-contentlist-onenote-section-groupslist-all-onenote-sectionslist-onenote-section-pagescreate-onenote-section-pagelist-outlook-categoriescreate-outlook-categorylist-supported-languageslist-supported-time-zonesupload-my-profile-photolist-planner-taskssend-maillist-todo-task-listscreate-todo-task-listupdate-todo-task-listdelete-todo-task-listlist-todo-taskscreate-todo-taskget-todo-taskupdate-todo-taskdelete-todo-tasklist-todo-linked-resourcescreate-todo-linked-resourcedelete-todo-linked-resourcecreate-planner-bucketget-planner-bucketupdate-planner-bucketdelete-planner-bucketget-planner-planlist-plan-bucketslist-plan-taskscreate-planner-taskget-planner-taskupdate-planner-taskget-planner-task-detailsupdate-planner-task-detailslist-subscriptionscreate-subscriptionget-subscriptionupdate-subscriptiondelete-subscriptionreauthorize-subscriptionparse-teams-urldownload-bytes
Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

Scan this tool yourself

Reproduce this audit locally, integrate into CI, or let your agent audit its own tools.

Install once, then scan any MCP server:

$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash

$ tooltrust-scanner scan --server "npx -y ms-365-mcp-server"

Adjust the package name if your npm registry name differs from the tool ID. View source

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ms-365-mcp-server

Risk Summary

Security Findings (726)

📦Supply Chain CVEs (OSV) ×178

⚠️Excessive Permissions ×38

⚠️Excessive Permissions ×123

⚠️Excessive Permissions ×215

ℹ️Missing Rate-Limit / Timeout ×172

Scan this tool yourself

Add badge to your README