<p>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.</p>
<p>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.</p>
<p>The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.</p>
References
| Link | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16946 | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
31 Dec 2023, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 3.5
v3 : 8.7 |
| Summary | <p>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.</p> <p>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.</p> <p>The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.</p> |
Information
Published : 2020-10-16 23:15
Updated : 2024-02-28 18:08
NVD link : CVE-2020-16946
Mitre link : CVE-2020-16946
CVE.ORG link : CVE-2020-16946
JSON object : View
Products Affected
microsoft
- sharepoint_designer
- sharepoint_enterprise_server
- sharepoint_server
- sharepoint_foundation
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')