Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-1482
CVE-2020-1482:
vulnerability analysis and mitigation
Overview
A cross-site-scripting (XSS) vulnerability (CVE-2020-1482) exists in Microsoft SharePoint Server when it fails to properly sanitize specially crafted web requests. This vulnerability affects multiple versions of SharePoint, including SharePoint Enterprise Server 2016, SharePoint Foundation 2010 SP2, SharePoint Foundation 2013 SP1, and SharePoint Server 2019 (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 6.1 (Medium) by NIST with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, while Microsoft assigned it a score of 6.3 (Medium) with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) (NVD).
Impact
An attacker who successfully exploits this vulnerability could perform cross-site scripting attacks on affected systems and execute scripts in the security context of the current user. This could allow the attacker to read unauthorized content, use the victim's identity to take actions on the SharePoint site, modify permissions, delete content, and inject malicious content into the user's browser (NVD).
Exploitability
The vulnerability requires an authenticated attacker to send a specially crafted request to an affected SharePoint server. User interaction is required as part of the attack chain, making it necessary for a victim to voluntarily interact with the attack mechanism (NVD).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. The update helps ensure that SharePoint Server properly sanitizes web requests. The fix was included in the September 8, 2020 security updates (Microsoft Support).
Additional resources
Source: This report was generated using AI
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