CVE-2018-8159 Cross-site scripting in Microsoft Exchange Server
Attackers can exploit improper web request handling in Exchange OWA 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-2018-8159?
CVE-2018-8159 is a medium-severity cross-site scripting vulnerability in Microsoft Exchange Server, published on 9 May 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
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Weakness: CWE-79
Which versions are affected by CVE-2018-8159?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2018-8159?
No fix has been published for CVE-2018-8159 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-2018-8159 being exploited?
There is no known exploitation of CVE-2018-8159 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-f9g9-xmqv-vpcg.