What is the CVSS score of CVE-2019-0558?

CVE-2019-0558 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 1.9%.

Is there a patch available for CVE-2019-0558?

Yes, a patch is available for CVE-2019-0558. Update the affected software to the latest version immediately.

Business Productivity Servers CVE-2019-0558

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2019-01-08 secure@microsoft.com

XSS Microsoft Business Productivity Servers Sharepoint Server

5.4

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Jan 08, 2019 - 21:29 cve.org

MEDIUM 5.4

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Microsoft Business Productivity Servers, Microsoft Sharepoint Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.