gcdRadar
archive/Patch now/AIR-2025-0124
closedclosed 18 Jul 2025Patch now2 Disclosed vulnerabilityAI

Microsoft 365 Copilot Flaw Allowed Unlogged File Access

Microsoft 365 Copilot

A security vulnerability in Microsoft 365 Copilot permitted users to access and summarize files without generating audit log entries. Microsoft patched the issue following disclosure by a researcher.

fix status
Fix status unknown
first report
4 Jul 2025
last update
4 Jul 2025

Timeline · 1

  1. 4 Jul 2025Microsoft 365 Copilot Vulnerability Allegedly Allowed File Access Without Audit Log Entry

Sources · 1

Research and catalogues

  1. 2025-07-04
    Microsoft 365 Copilot Vulnerability Allegedly Allowed File Access Without Audit Log Entry
    AI Incident Database · incidentdatabase.ai/cite/1218

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerabilityData leak
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Microsoft
owasp llm top 10
LLM02:2025 Sensitive Information DisclosureLLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
microsoftcopilotaudit-log
dates
happened 4 Jul 2025 · first reported 4 Jul 2025
origin
AI Incident Database
Derived from the AI Incident Database (CC BY-SA 4.0).
record
confidence 0.95 · created 2026-10-18 06:33Z · updated 2026-10-18 06:59Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# Microsoft 365 Copilot Flaw Allowed Unlogged File Access

https://gcdradar.vercel.app/incidents/microsoft-365-copilot-flaw-allowed-unlogged-file-access · AIR-2025-0124 · closed 2025-07-18

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-07-04
- AI role: Attack on AI
- Products: Microsoft 365 Copilot

## Summary

A security vulnerability in Microsoft 365 Copilot permitted users to access and summarize files without generating audit log entries. Microsoft patched the issue following disclosure by a researcher.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-07-04: Microsoft 365 Copilot Vulnerability Allegedly Allowed File Access Without Audit Log Entry (https://incidentdatabase.ai/cite/1218)

## Sources

- 2025-07-04 AI Incident Database: Microsoft 365 Copilot Vulnerability Allegedly Allowed File Access Without Audit Log Entry https://incidentdatabase.ai/cite/1218

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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