{"id":"CVE-2026-45500","title":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","summary":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"microsoft","product":"exchange_server","affected":["exchange_server = 2016","exchange_server = 2019","exchange_server_subscription_edition < 15.02.2562.043"],"patched":["exchange_server_subscription_edition 15.02.2562.043"],"published":"2026-06-09","updated":"2026-07-28","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45500","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45500","label":"secure@microsoft.com"}],"tags":["nvd"],"epss":0.00375,"epssPercentile":0.31377,"ingestedAt":"2026-07-28T23:40:23.466Z","slug":"CVE-2026-45500","body":"## Overview\n\nImproper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.\n\n## Affected\n\n- `exchange_server = 2016`\n- `exchange_server = 2019`\n- `exchange_server_subscription_edition < 15.02.2562.043`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `exchange_server_subscription_edition 15.02.2562.043`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}