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TI-2018-05900 Aliases CVE-2018-8155GHSA-xxw3-cmrq-w3vh

Cross-site scripting in Microsoft SharePoint

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint Elevation of Privilege Vulnerability." This affects Microsoft SharePoint. This CVE ID is unique from CVE-2018-8149, CVE-2018-8156, CVE-2018-8168.

Why it matters now

EPSS 0.02801 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft SharePointEnterprise Server 2016; Foundation 2013 Service Pack 1—No fix listedCNA
  • Microsoft SharePoint VendorMicrosoft Affected Enterprise Server 2016; Foundation 2013 Service Pack 1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
  • cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-8155
  2. 2026-10-03 Alias added: GHSA-xxw3-cmrq-w3vh

References

Patch 1

  • TI-2019-00394 Improper input validation in Microsoft SharePoint Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-08100 Microsoft Word Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-21993 Microsoft SharePoint Server Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2022-17767 Microsoft SharePoint Server Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2020-12940 Microsoft SharePoint Remote Code Execution Vulnerability CVSS 3.1HIGH 8.6
  • TI-2020-01145 A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails… CVSS 3.1HIGH 8.8
See all 225 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences