Unknown [CVE-2020-1101] Microsoft Office SharePoint XSS Vulnerability
This security Microsoft Server advisory covers CVE-2020-1101 affecting Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Foundation 2013 Service Pack 1, Microsoft SharePoint Server 2019.
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Summary
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. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.
The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user.
The attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.
The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.
Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Foundation 2013 Service Pack 1; Microsoft SharePoint Server 2019.
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before publication
- Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.0 before publication
- Microsoft SharePoint Server 2019 16.0.0 before publication
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
- publication
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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