PT-2026-48008 · Microsoft · Live Share Canvas Sdk

Jianyang Song · CVE-2026-45644 · Published 2026-06-09 · Updated 2026-06-19

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Live Share Canvas SDK (affected versions not specified)

Description Improper neutralization of input during web page generation leads to cross-site scripting, which allows an authorized attacker to elevate privileges over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2026-08215

CVE-2026-45644

Affected Products

Live Share Canvas Sdk

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45644 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45644 · Security Note
• https://bdu.fstec.ru/vul/2026-08215 · Security Note
• https://twitter.com/windowsforum/status/2064499263493517695 · Twitter Post
• https://t.me/cveNotify/170849 · Telegram Post