Dashboard / CVE-2026-47645

CVE-2026-47645

HIGH
MEDIUM Priority: 0.07 BB Relevance: 68/100
Published: 2026-06-19 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

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 (1)

Affected Software (1)

VendorProductVersion
microsoft 365_copilot -

References & Advisories (1)

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.76%
Raw Score 0.007580
Percentile 55.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00758
2026-10-28
0.00758

Intelligence Sources

nvd ref →

External Links