CVE-2018-8300: microsoft microsoft sharepoint Improper Input Validation
CVSS: 8.8v3.0HighModified
Published 11-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-8300 is a high (CVSS 8.8) Improper Input Validation vulnerability in microsoft microsoft sharepoint. EPSS estimates a 13.96% chance of exploitation in the next 30 days, higher than 96.5% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
13.96%
0%100%
Medium · +0.38 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka "Microsoft SharePoint Remote Code Execution Vulnerability." This affects Microsoft SharePoint.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
13.96%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
+0.38 pp
From 13.59% on 19-09-2026
19-09-202619-10-2026
EPSS score13.96%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
- microsoft sharepointEnterprise Server 2016 | Foundation 2013 Service Pack 1
- sharepoint_enterprise_server2013:sp1 | 2016
1 vendor · 2 products
References
3 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8300X Refsource CONFIRMPatchVendor Advisory