CVE-2026-33102 (GCVE-0-2026-33102)

Vulnerability from cvelistv5 – Published: 2026-04-23 21:35 – Updated: 2026-04-24 18:19 Exclusively Hosted Service
VLAI?
Title
Microsoft 365 Copilot Elevation of Privilege Vulnerability
Summary
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
Severity ?
9.3 (Critical)
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
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Copilot Affected: -
Create a notification for this product.
Date Public ?
2026-04-23 14:00
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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