Vulnerability Name:

CVE-2020-1099 (CCN-181044)

Assigned:2019-11-04
Published:2020-05-12
Updated:2020-05-22
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, aka 'Microsoft Office SharePoint XSS Vulnerability'. This CVE ID is unique from CVE-2020-1100, CVE-2020-1101, CVE-2020-1106.
CVSS v3 Severity:5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2020-1099

Source: XF
Type: UNKNOWN
ms-office-cve20201099-xss(181044)

Source: CCN
Type: Microsoft Security TechCenter - May 2020
Microsoft Office SharePoint XSS Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1099

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:sharepoint_enterprise_server:2016:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft sharepoint enterprise server 2016
    microsoft sharepoint server 2019
    microsoft sharepoint enterprise server 2016 -
    microsoft sharepoint server 2019