CVE-2020-26733 Cross-site scripting in n/a
An authenticated attacker can inject malicious scripts into the DDNS configuration page of SKYWORTH routers, potentially leading to session hijacking or further compromise.
- 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-2020-26733?
CVE-2020-26733 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Jan 2021. 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) in Configuration page in SKYWORTH GN542VF Hardware Version 2.0 and Software Version 2.0.0.16 allows authenticated attacker to inject their own script into the page via DDNS Configuration Section.
Weakness: CWE-79
Which versions are affected by CVE-2020-26733?
It affects 1 product.
Products include Skyworth Gn542vf Firmware.
How do I fix CVE-2020-26733?
No fix has been published for CVE-2020-26733 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-2020-26733 being exploited?
There is no known exploitation of CVE-2020-26733 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-v2p5-mvpw-w7pp.