CVE-2019-0558

moderate-risk
Published 2019-01-08

A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft Office SharePoint XSS Vulnerability." This affects Microsoft SharePoint Server, Microsoft SharePoint, Microsoft Business Productivity Servers. This CVE ID is unique from CVE-2019-0556, CVE-2019-0557.

Do I need to act?

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0.79% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Microsoft

References (4)

Third Party Advisory http://www.securityfocus.com/bid/106389
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0558
Third Party Advisory http://www.securityfocus.com/bid/106389
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0558
34
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 3/34 · Minimal
Exposure 10/34 · Low