CVE-2018-8917 Cross-site scripting in DiskStation Manager (DSM)
Remote attackers can inject arbitrary web script or HTML via the host parameter in Synology DSM, potentially leading to session hijacking or malicious actions.
- 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-2018-8917?
CVE-2018-8917 is a medium-severity cross-site scripting vulnerability in Synology Diskstation Manager, published on 24 Dec 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting (XSS) vulnerability in info.cgi in Synology DiskStation Manager (DSM) before 6.1.6-15266 allows remote attackers to inject arbitrary web script or HTML via the host parameter.
Weakness: CWE-79
Which versions are affected by CVE-2018-8917?
It affects 1 product.
Products include Synology Diskstation Manager.
How do I fix CVE-2018-8917?
No fix has been published for CVE-2018-8917 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-2018-8917 being exploited?
There is no known exploitation of CVE-2018-8917 in the wild and no public exploit code.
Other vulnerabilities in Synology Diskstation Manager
Sources
Also known as GHSA-xqh5-26xp-246w.