CVE-2018-8426: microsoft microsoft sharepoint Cross-site Scripting
CVSS: 5.4v3.0MediumModified
Published 13-09-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-8426 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in microsoft microsoft sharepoint. EPSS estimates a 2.25% chance of exploitation in the next 30 days, higher than 82.6% of scored vulnerabilities.
CVSS score
5.4/10
010
Medium · v3.0 (NVD)EPSS score
2.25%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-09-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.4Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
2.25%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.25% on 18-09-2026
18-09-202618-10-2026
EPSS score2.25%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft5 products
- microsoft sharepointEnterprise Server 2013 Service Pack 1 | Enterprise Server 2016
- microsoft sharepoint server2010 Service Pack 2
- sharepoint_enterprise_server_2013na
- sharepoint_enterprise_server_2016na
- sharepoint_server_2010na
1 vendor · 5 products
References
3 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426X Refsource CONFIRMPatchVendor Advisory