Cross-site scripting in Microsoft SharePoint Server
Priority LOW 29CWE-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
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 affects Microsoft SharePoint Server, Microsoft SharePoint.
Why it matters now
EPSS 0.02253 83rd 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server | 2010 Service Pack 2 | — | No fix listed | CNA |
| Microsoft | Microsoft SharePoint | Enterprise Server 2013 Service Pack 1; Enterprise Server 2016 | — | No fix listed | CNA |
- Microsoft SharePoint Server VendorMicrosoft Affected 2010 Service Pack 2 Fixed in — No fix listed CNA
- Microsoft SharePoint VendorMicrosoft Affected Enterprise Server 2013 Service Pack 1; Enterprise Server 2016 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:sharepoint_enterprise_server_2013:-:sp1:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_enterprise_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_server_2010:-:sp2:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:sharepoint_enterprise_server_2013:-:sp1:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_enterprise_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_server_2010:-:sp2:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8426
- 2026-10-03 Alias added: GHSA-87vw-7wf8-wpfx
More Microsoft Sharepoint Enterprise Server 2013 vulnerabilities
- TI-2018-06064 Out-of-bounds read in Microsoft Word CVSS 3.0MEDIUM 5.5
Sources
- CVE-2018-8426 · CVE Program
- CVE-2018-8426 · NVD
- FIRST EPSS
- GHSA-87vw-7wf8-wpfx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences