Skip to content
Fencer Intel
medium 6.1

CVE-2017-8551 json

An elevation of privilege vulnerability exists when Microsoft SharePoint software fails to properly sanitize a specially crafted requests,…

published 2017-06-15 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17501

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

An elevation of privilege vulnerability exists when Microsoft SharePoint software fails to properly sanitize a specially crafted requests, aka "Microsoft SharePoint XSS vulnerability".

Patch / fix

Exploit prediction

3.26% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Microsoft Corporation Microsoft SharePoint

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.