CVE-2026-6218 aandrew-me ytDownloader Error Details Panel createTextNode cross site scripting
Remote attackers can execute arbitrary scripts via the Error Details Panel in ytDownloader, potentially compromising user sessions or data.
- 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-2026-6218?
CVE-2026-6218 is a medium-severity cross-site scripting vulnerability in aandrew-me ytDownloader, published on 13 Apr 2026. 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
A vulnerability was found in aandrew-me ytDownloader up to 3.20.2. Affected by this issue is the function createTextNode of the component Error Details Panel. The manipulation results in cross site scripting. The attack may be performed from remote. The vendor was contacted early about this disclosure.
Which versions are affected by CVE-2026-6218?
How do I fix CVE-2026-6218?
No fix has been published for CVE-2026-6218 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-2026-6218 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6218 exists.
Sources
Also known as GHSA-4cfw-fmc2-h845.