What is CVE-2026-57104?

CVE-2026-57104 is a high-severity vulnerability in Microsoft Azure Storage Explorer, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-08-11.

How severe is CVE-2026-57104?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Microsoft Azure Storage Explorer

CVE-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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-08-11 · last modified 2026-08-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.9th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001

Affected products

Microsoft Azure Storage Explorer — versions 0
Microsoft Azure Storage Explorer

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Azure Storage Explorer Elevation of Privilege Vulnerability (vendor-advisory, patch, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-57104?: CVE-2026-57104 is a high-severity vulnerability in Microsoft Azure Storage Explorer, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-08-11.
How severe is CVE-2026-57104?: High severity. CVSS v3 base score is 8.8 out of 10.