VULNERABILITY INTELLIGENCE
CVE-2026-47645
CVSS score8.8 HIGH
EPSS probability0.76%
CISA KEVNot currently listed
Published2026-06-19
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Description
Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network.
Weakness classification
- CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Primary references
- secure@microsoft.com — Vendor Advisory