What is CVE-2019-1266?

CVE-2019-1266 is a medium-severity vulnerability in Microsoft Exchange_server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-11.

How severe is CVE-2019-1266?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Microsoft Exchange_server

CVE-2019-1266

A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.020 (78.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Microsoft Exchange_server — versions 2016, 2019
Microsoft Exchange Server 2016 — versions Cumulative Update 12, Cumulative Update 13
Microsoft Exchange Server 2019 — versions Cumulative Update 1, Cumulative Update 2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-1266?: CVE-2019-1266 is a medium-severity vulnerability in Microsoft Exchange_server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-11.
How severe is CVE-2019-1266?: Medium severity. CVSS v3 base score is 6.1 out of 10.