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CVE-2020-1573 : Security Advisory and Response

Learn about CVE-2020-1573, a cross-site-scripting (XSS) vulnerability in Microsoft SharePoint Server. Discover affected versions, impact, and mitigation steps.

Microsoft Office SharePoint XSS Vulnerability was published on August 17, 2020. It affects multiple Microsoft SharePoint products.

Understanding CVE-2020-1573

A cross-site-scripting (XSS) vulnerability in SharePoint Server allows attackers to execute malicious scripts on affected systems.

What is CVE-2020-1573?

        XSS vulnerability in Microsoft SharePoint Server
        Attackers can exploit by sending crafted web requests
        Allows unauthorized access and manipulation of user data

The Impact of CVE-2020-1573

        Enables attackers to perform cross-site scripting attacks
        Run scripts in the user's security context
        Unauthorized access to content and user actions on SharePoint sites

Technical Details of CVE-2020-1573

This section provides technical details about the vulnerability.

Vulnerability Description

        XSS vulnerability in SharePoint Server
        Attacker exploit through specially crafted requests

Affected Systems and Versions

        Microsoft SharePoint Enterprise Server 2016 (version 16.0.0)
        Microsoft SharePoint Enterprise Server 2013 (version 15.0.0)
        Microsoft SharePoint Server 2019 (version 16.0.0)
        Microsoft SharePoint Foundation 2010 (version 13.0.0)
        Microsoft SharePoint Foundation 2013 (version 15.0.0)

Exploitation Mechanism

        Attacker sends crafted web requests
        Executes scripts in the user's security context

Mitigation and Prevention

Protect your systems against the CVE-2020-1573 vulnerability.

Immediate Steps to Take

        Apply the security update from Microsoft
        Educate users on identifying and avoiding suspicious links
        Monitor and filter user-generated content for malicious scripts

Long-Term Security Practices

        Regular security training for users and IT staff
        Implement web application firewalls
        Keep systems and software up to date

Patching and Updates

        Install security updates promptly
        Follow best practices for securing SharePoint environments

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