CVE-2026-45644

HIGH
MEDIUM Priority: 0.04 BB Relevance: 56/100
Published: 2026-06-09 Modified: 2026-11-10 First seen: 2026-11-10 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Live Share Canvas SDK allows an authorized attacker to elevate privileges over a network.

Affected Software (1)

VendorProductVersion
Microsoft Microsoft Live Share Canvas SDK 1.0.0 < 1.4.2

References & Advisories (1)

Bug Bounty Relevance

56 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

8.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.55%
Raw Score 0.005540
Percentile 46.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00554
2026-11-12
0.00554
2026-11-10
0.00554

Intelligence Sources

mitre ref →