# CVE-2018-1014: Microsoft SharePoint Elevation of Privilege Vulnerability

CVE-2018-1014 is fixed in 2 products on 1 platform, first by KB4018342, released April 10, 2018. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-1014
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.0223
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Unlikely
- Published: Apr 10, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-1014

## Description

<p>An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted URL to a user of an affected SharePoint server.</p> <p>An attacker who successfully exploited the vulnerability could redirect users who are trying to access Silverlight content on an affected SharePoint server to malicious content if the targeted user does not already have Silverlight installed. This vulnerability requires that the user does not have Silverlight installed, clicks the specially crafted URL from the attacker, and clicks the link provided on SharePoint page to download Silverlight.</p> <p>The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2013 Service Pack 1 |  | [KB4018342](https://patchblox.com/security/data/fix/microsoft/kb4018342.md) | Apr 10, 2018 |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |  | [KB4018336](https://patchblox.com/security/data/fix/microsoft/kb4018336.md) | Apr 10, 2018 |

---

Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.