CVE-2017-8758 Cross-site scripting in Microsoft Exchange Server 2016
An attacker can exploit a cross-site scripting flaw in Microsoft Exchange Outlook Web Access to elevate privileges or take over accounts.
- 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-2017-8758?
CVE-2017-8758 is a medium-severity cross-site scripting vulnerability in Microsoft Exchange Server, published on 13 Sep 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 Exchange Server 2016 allows an elevation of privilege vulnerability when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Cross-Site Scripting Vulnerability."
Weakness: CWE-79
Which versions are affected by CVE-2017-8758?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2017-8758?
No fix has been published for CVE-2017-8758 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-2017-8758 being exploited?
There is no known exploitation of CVE-2017-8758 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Exchange Server
- CVE-2024-21410 Microsoft Exchange Server Privilege Escalation
- CVE-2021-34473 Microsoft Exchange Server Remote Code Execution
- CVE-2021-26855 Microsoft Exchange Server Remote Code Execution
- CVE-2021-34523 Microsoft Exchange Server Privilege Escalation
- CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data
Sources
Also known as GHSA-5jxp-8hjc-v25c.