{"id":"CVE-2026-45644","aliases":["EUVD-2026-35568","GHSA-pc2q-pf7r-rf2w"],"status":"published","title":"Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability","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.","severity":{"version":"3.1","score":8,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00554,"percentile":0.46568,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-06-09T17:05:42Z","modified":"2026-11-10T23:24:32Z","products":[{"vendor":"microsoft","product":"live_share_canvas"},{"vendor":"microsoft","product":"microsoft live share canvas sdk"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45644","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45644"},{"url":"https://github.com/advisories/GHSA-pc2q-pf7r-rf2w"}],"sources":{"cve":[{"id":"CVE-2026-45644","title":"Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability","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.","status":"published","published":"2026-06-09T17:05:42.55Z","modified":"2026-11-10T23:24:32.589Z","cvss":[{"version":"3.1","score":8,"vector":"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","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-11T00:50:10.062046Z"}],"euvd":[{"id":"EUVD-2026-35568","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.","status":"published","published":"2026-06-09T17:05:42Z","modified":"2026-11-10T23:24:32Z","cvss":[{"version":"3.1","score":8,"vector":"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","level":"high"}],"updated_at":"2026-11-11T00:24:45.332412Z"}],"ghsa":[{"id":"GHSA-pc2q-pf7r-rf2w","title":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft...","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.","status":"published","published":"2026-06-09T18:30:53Z","modified":"2026-06-09T18:30:59Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:08:42.112356Z"}],"nvd":[{"id":"CVE-2026-45644","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.","status":"published","published":"2026-06-09T17:17:31.533Z","modified":"2026-07-23T08:10:00.137Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}