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CVE-2018-8149

18
FAUCET Score

CVE-2018-8149 is an elevation of privilege vulnerability in Microsoft SharePoint Server that allows an attacker to gain elevated privileges by sending a specially crafted web request. The vulnerability has a CVSS score of 5.4 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, and potentially leading to limited confidentiality and integrity impacts. While the vulnerability is not listed in CISA's KEV catalog and has no known public exploits in Metasploit, Nuclei, or ExploitDB, it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:*:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0266 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2016
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2013 Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server 2010 Service Pack 2
View patch

Vendor Advisories (1)

microsoft2018-May/CVE-2018-8149Important

Microsoft SharePoint Elevation of Privilege Vulnerability

May 8, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8149
PatchVendor Advisory
securityfocus.com / bid/104036
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040856
Third Party AdvisoryVDB Entry