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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.

PUBLISHED Reserved 2025-08-12 | Published 2025-10-09 | Updated 2025-11-22 | Assigner microsoft




CRITICAL: 9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Any version
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55321 (Azure Monitor Log Analytics Spoofing Vulnerability) vendor-advisory

cve.org (CVE-2025-55321)

nvd.nist.gov (CVE-2025-55321)

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