Skip to content
Fencer Vulns
high 8.8

CVE-2017-8569 json

Microsoft SharePoint Server allows an elevation of privilege vulnerability due to the way that it sanitizes a specially crafted web request…

published 2017-07-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17519

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.4%
EPSS 5.4% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Microsoft SharePoint Server allows an elevation of privilege vulnerability due to the way that it sanitizes a specially crafted web request to an affected SharePoint server, aka "SharePoint Server XSS Vulnerability".

Patch / fix

Exploit prediction

5.38% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Microsoft Corporation Microsoft SharePoint Enterprise Server 2016

Classification

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

References

Sources

Fencer Vulns 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.