CVE-2017-11876

Microsoft Project Server and Microsoft SharePoint Enterprise Server 2016 allow an attacker to use cross-site forgery to read content that they are not authorized to read, use the victim's identity to take actions on the web application on behalf of the victim, such as change permissions and delete content, and inject malicious content in the browser of the victim, aka "Microsoft Project Server Elevation of Privilege Vulnerability".

Published: 2017-11-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-11876 is rated High Risk (65.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.47%). EPSS rose +1.50% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-11876

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.98% 2.47% +1.50%
2 2025-12-17 1.22% 0.98% -0.24%
3 2025-06-01 — 1.22% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-11876

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2017-11876

Affected software / configurations for CVE-2017-11876

Vendor Product Version Raw CPE
microsoft project_server 2013 cpe:2.3:a:microsoft:project_server:2013:sp1:*:*:*:*:*:*
microsoft sharepoint_enterprise_server 2016 cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*

References for CVE-2017-11876

URL Tags
http://www.securityfocus.com/bid/101754 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039788 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039789 Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11876 Issue Tracking Patch Vendor Advisory
cvelogic Threat Intelligence