How severe is CVE-2017-11876?

CVE-2017-11876 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-11876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11876?

CVE-2017-11876 primarily affects Microsoft Project Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-11876?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-11876 published?

CVE-2017-11876 was published on 2017-11-15 and last updated on 2026-06-17.

CVE-2017-11876

CVE-2017-11876 is a high-severity vulnerability in Microsoft Project Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Microsoft Project Server
Published: 2017-11-15
Last modified: 2026-06-17

Description

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".

Frequently asked questions

What is 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".
How severe is CVE-2017-11876?: CVE-2017-11876 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-11876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11876?: CVE-2017-11876 primarily affects Microsoft Project Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-11876?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-11876 published?: CVE-2017-11876 was published on 2017-11-15 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:microsoft:project_server:2013:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*

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