VulnerabilityModified
CVE-2017-8551
An elevation of privilege vulnerability exists when Microsoft SharePoint software fails to properly sanitize a specially crafted requests, aka "Microsoft SharePoint XSS vulnerability".
MEDIUM 6.1EPSS 3.26%
Does this matter?
Lower severity and a low EPSS score (3.26%). Track it; it rarely justifies an emergency change on its own.
Description
An elevation of privilege vulnerability exists when Microsoft SharePoint software fails to properly sanitize a specially crafted requests, aka "Microsoft SharePoint XSS vulnerability".
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 3.26% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- microsoft/project server
- Source
- secure@microsoft.com
EPSS moved from 4.9% on 21 September 2026 to 3.3% on 27 October 2026.
References
- http://www.securityfocus.com/bid/98913Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038663Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8551Patch, Vendor Advisory
- http://www.securityfocus.com/bid/98913Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038663Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8551Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.