What is the CVSS score of CVE-2018-8426?

CVE-2018-8426 has a CVSS 3.0 base score of 5.4 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 2.3%.

Is there a patch available for CVE-2018-8426?

Yes, a patch is available for CVE-2018-8426. Update the affected software to the latest version immediately.

Sharepoint Enterprise Server 2013 CVE-2018-8426

MEDIUM

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

2018-09-13 secure@microsoft.com

Microsoft XSS Sharepoint Enterprise Server 2013 Sharepoint Enterprise Server 2016 Sharepoint Server 2010

5.4

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/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

Sep 13, 2018 - 00:29 nvd

MEDIUM 5.4

DescriptionNVD

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. Affected products include: Microsoft Sharepoint Enterprise Server 2013, Microsoft Sharepoint Enterprise Server 2016, Microsoft Sharepoint Server 2010.

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.