CVE-2020-27659 Cross-site scripting in Safe Access
Remote attackers can inject arbitrary web script or HTML via domain or profile parameters in Synology Safe Access.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-27659?
CVE-2020-27659 is a high-severity cross-site scripting vulnerability in Synology Safe Access, published on 30 Nov 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Multiple cross-site scripting (XSS) vulnerabilities in Synology SafeAccess before 1.2.3-0234 allow remote attackers to inject arbitrary web script or HTML via the (1) domain or (2) profile parameter.
Weakness: CWE-79
Which versions are affected by CVE-2020-27659?
It affects 1 product.
Products include Synology Safeaccess.
How do I fix CVE-2020-27659?
No fix has been published for CVE-2020-27659 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-2020-27659 being exploited?
There is no known exploitation of CVE-2020-27659 in the wild and no public exploit code.
Other vulnerabilities in Synology Safe Access
Sources
Also known as GHSA-c78g-42vj-2xq3.