# CVE-2017-11876: Cross-site request forgery in Microsoft Server

> Attackers can exploit CSRF to read unauthorized content, modify permissions, or inject malicious scripts in Microsoft Project Server and SharePoint.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Nov 2017
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-hc3g-h2rv-xpmc

## What is CVE-2017-11876?

CVE-2017-11876 is a high-severity vulnerability in Microsoft Sharepoint Enterprise Server, published on 15 Nov 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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".

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2017-11876?

It affects 2 products.


Products: Microsoft Project Server, Microsoft Sharepoint Enterprise Server.

## How do I fix CVE-2017-11876?

No fix has been published for CVE-2017-11876 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-11876 being exploited?

There is no known exploitation of CVE-2017-11876 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Sharepoint Enterprise Server

- [CVE-2018-0909](https://insights.sbomify.com/CVE-2018-0909/): Cross-site scripting in Microsoft SharePoint (high 8.8)
- [CVE-2018-0910](https://insights.sbomify.com/CVE-2018-0910/): Cross-site scripting in Microsoft SharePoint (high 8.8)
- [CVE-2018-0911](https://insights.sbomify.com/CVE-2018-0911/): Cross-site scripting in Microsoft SharePoint (high 8.8)
- [CVE-2018-0912](https://insights.sbomify.com/CVE-2018-0912/): Cross-site scripting in Microsoft SharePoint (high 8.8)
- [CVE-2018-0913](https://insights.sbomify.com/CVE-2018-0913/): Cross-site scripting in Microsoft SharePoint (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-11876 and fix it if it is affected.

What it is: CVE-2017-11876 is a high-severity vulnerability in Microsoft Sharepoint Enterprise Server, published on 15 Nov 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-11876 in the wild and no public exploit code.

Affected product: Microsoft Sharepoint Enterprise Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2017-11876/ (Markdown: https://insights.sbomify.com/CVE-2017-11876/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-11876
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-11876
- OSV: https://osv.dev/vulnerability/CVE-2017-11876

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-11876/
Summaries are generated and may contain mistakes; the official description above is the record.