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CVE-2018-8580

20
FAUCET Score

CVE-2018-8580 is an information disclosure vulnerability in Microsoft SharePoint Server, specifically affecting certain modes of its search function. This flaw allows for cross-site search attacks, a variant of CSRF, to potentially leak sensitive information. Rated Medium severity (CVSS 4.3), it requires user interaction (UI:R) but has low attack complexity (AC:L) and can be exploited over the network (AV:N). While there is no known public exploit code or active exploitation, it has received some community and media attention.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.15%
Probability of exploitation in next 30 days
EPSS Percentile
89.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0415 is in the 95th percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 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 Foundation 2010 Service Pack 2
View patch

Vendor Advisories (1)

microsoft2018-Dec/CVE-2018-8580Important

Microsoft SharePoint Information Disclosure Vulnerability

Dec 11, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8580
PatchVendor Advisory
securityfocus.com / bid/106096
Third Party AdvisoryVDB Entry