{"id":"CVE-2025-55321","aliases":["EUVD-2025-33550","GHSA-96rv-gm93-8wx5"],"status":"published","title":"Azure Monitor Log Analytics Spoofing Vulnerability","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an unauthorized attacker to perform spoofing over a network.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.0045,"percentile":0.39335,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-10-09T21:04:12Z","modified":"2026-10-08T13:10:00Z","products":[{"vendor":"microsoft","product":"azure monitor"},{"vendor":"microsoft","product":"azure_monitor"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55321","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55321"},{"url":"https://github.com/advisories/GHSA-96rv-gm93-8wx5"}],"sources":{"cve":[{"id":"CVE-2025-55321","title":"Azure Monitor Log Analytics Spoofing Vulnerability","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-10-09T21:04:12.117Z","modified":"2026-02-26T17:47:53.803Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:52.839698Z"}],"euvd":[{"id":"EUVD-2025-33550","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-10-09T21:04:12Z","modified":"2026-02-26T17:47:53Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T19:48:22.96585Z"}],"ghsa":[{"id":"GHSA-96rv-gm93-8wx5","title":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure...","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2025-10-09T21:31:12Z","modified":"2025-10-09T21:31:20Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:03:55.615501Z"}],"nvd":[{"id":"CVE-2025-55321","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-10-09T21:15:37.89Z","modified":"2026-10-08T13:10:00.2Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:36.851295Z"}]}}