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CVE-2026-33102
Published: Apr 23, 2026
Modified: Jun 1, 2026
PUBLISHED
CVSS v3.1
9.3
CRITICAL
Description
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Microsoft 365 Copilot | affected - |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
References
Microsoft 365 Copilot Elevation of Privilege Vulnerability
vendor-advisory
patch
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