EUVD-2026-25310
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
GHSA-q6x5-8v4h-crwr
9.3
CVSS 3.1
Temporal: 8.1
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CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Lifecycle Timeline
3
EUVD ID Assigned
Apr 23, 2026 - 22:15 euvd
EUVD-2026-25310
Patch released
Apr 23, 2026 - 22:15 nvd
Patch available
CVE Published
Apr 23, 2026 - 21:35 nvd
CRITICAL 9.3
DescriptionNVD
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
Analysis
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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