A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web reque…

Published 7 y ago 2018-12-12 · modified 4 mo ago 2026-06-17 · JSON

CVSS

5.4

v3.1 · CNA

CISA KEV

not known exploited

EPSS

1.6%

percentile 76%

Public exploits

none known

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.

CISA SSVC assessment

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago 2024-01-18

Exploit prediction (EPSS)

1.58% probability of exploitation in the next 30 days, higher than 76% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CISA ADP	3.1	5.4	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`
CNA	3.1	5.4	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`
NVD	3.0	5.4	`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`
NVD	2.0	3.5	`AV:N/AC:M/Au:S/C:N/I:P/A:N`

Affected products

Microsoft Microsoft SharePoint

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-8650 · x_refsource_CONFIRM, x_transferred
securityfocus.com /bid/106170 · vdb-entry, x_refsource_BID, x_transferred

Sources

CVE List: CVE-2018-8650
NVD: CVE-2018-8650

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary