CVE-2019-0558 Cross-site scripting in Microsoft Business Productivity Servers
Attackers can execute arbitrary scripts in user browsers via unsanitized web requests in Microsoft SharePoint Server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-0558?
CVE-2019-0558 is a medium-severity cross-site scripting vulnerability in Microsoft Sharepoint Server, published on 8 Jan 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft Office SharePoint XSS Vulnerability." This affects Microsoft SharePoint Server, Microsoft SharePoint, Microsoft Business Productivity Servers. This CVE ID is unique from CVE-2019-0556, CVE-2019-0557.
Weakness: CWE-79
Which versions are affected by CVE-2019-0558?
It affects 2 products.
Products include Microsoft Business Productivity Servers, Microsoft Sharepoint Server.
How do I fix CVE-2019-0558?
No fix has been published for CVE-2019-0558 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-2019-0558 being exploited?
There is no known exploitation of CVE-2019-0558 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2021-27076 Microsoft SharePoint Server Remote Code Execution Vulnerability
- CVE-2020-0931 File upload in Microsoft Business Productivity Servers
- CVE-2017-0243 Memory corruption in Microsoft Office 2007 SP2 and SP3, Microsoft Office 2010 SP2, Microsoft Office Web Apps 2010 SP2, and Microsoft Business Productivity Servers 2010 SP2.
- CVE-2020-0795 Cross-site scripting in Microsoft Business Productivity Servers
Sources
Also known as GHSA-rvmf-46hh-x3rp.