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CVE-2026-57104: Azure Storage Explorer Elevation of Privilege Vulnerability

highCVSS 8.8CVE-2026-57104
Improper neutralization of input during web page generation ('cross-site scripting') in Azure Storage Explorer allows an unauthorized attacker to elevate privileges over a network.

CSIRTS triage

vendor: Microsoftproduct: Azure Storage ExplorerPrivilege escalationCross-site scripting
What
Cross-site scripting in Azure Storage Explorer allows an unauthorized attacker to elevate privileges over a network.
Who is affected
Azure Storage Explorer deployments with unpatched versions are affected.
Urgency
High priority; network-based privilege escalation with high CVSS (8.8) requires immediate remediation.
Action
Update Azure Storage Explorer to the latest patched version immediately.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.8
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57104

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-57104coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Azure Storage Explorer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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