CVE-2018-0799 Cross-site scripting in Microsoft Access
An attacker can inject malicious scripts via image fields in Microsoft Access within SharePoint, potentially tampering with data or bypassing security controls.
- 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
- None listed
What is CVE-2018-0799?
CVE-2018-0799 is a medium-severity cross-site scripting vulnerability in Microsoft Sharepoint Enterprise Server, published on 10 Jan 2018. 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 Access in Microsoft SharePoint Enterprise Server 2013 and Microsoft SharePoint Enterprise Server 2016 allows a cross-site-scripting (XSS) vulnerability due to the way image field values are handled, aka "Microsoft Access Tampering Vulnerability".
Weakness: CWE-79
Which versions are affected by CVE-2018-0799?
It affects 1 product.
Products include Microsoft Sharepoint Enterprise Server.
How do I fix CVE-2018-0799?
No fix has been published for CVE-2018-0799 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2018-0799 being exploited?
There is no known exploitation of CVE-2018-0799 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Enterprise Server
- CVE-2019-0604 Microsoft SharePoint Remote Code Execution
- CVE-2023-24955 Microsoft SharePoint Server Code Injection
- CVE-2025-49706 Microsoft SharePoint Improper Authentication
- CVE-2020-1210 Microsoft SharePoint Remote Code Execution Vulnerability
- CVE-2020-1595 Microsoft SharePoint Remote Code Execution Vulnerability
Sources
Also known as GHSA-hg9c-qg74-469r.