Description
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.
CVSS breakdown
Affected products
- microsoft / Microsoft SharePoint Enterprise Server2016 – 2016
- microsoft / Microsoft SharePoint Enterprise Server2013 Service Pack 1 – 2013 Service Pack 1
- microsoft / Microsoft SharePoint Enterprise Server 2013 Service Pack 115.0.0 – publication
- microsoft / Microsoft SharePoint Enterprise Server 201616.0.0 – publication
- microsoft / Microsoft SharePoint Server2019 – 2019
- microsoft / Microsoft SharePoint Server2010 Service Pack 2 – 2010 Service Pack 2
- microsoft / Microsoft SharePoint Server 2010 Service Pack 213.0.0.0 – publication
- microsoft / Microsoft SharePoint Server 201916.0.0 – publication
- microsoft / sharepoint_enterprise_server2016 – 2016
- microsoft / sharepoint_foundation2013 – 2013
- microsoft / sharepoint_server2010 – 2010
- microsoft / sharepoint_server2019 – 2019