CVE-2026-33024 AVideo-Encoder has Unauthenticated Blind Server-Side Request Forgery via Public Thumbnail Generator
Unauthenticated attackers can exploit blind SSRF in AVideo thumbnail endpoints to access internal network resources and cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33024?
CVE-2026-33024 is a critical server-side request forgery vulnerability in WWBN AVideo-Encoder, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
AVideo is a video-sharing Platform. Versions prior to 8.0 contain a Server-Side Request Forgery vulnerability (CWE-918) in the public thumbnail endpoints getImage.php and getImageMP4.php. Both endpoints accept a base64Url GET parameter, base64-decode it, and pass the resulting URL to ffmpeg as an input source without any authentication requirement. The prior validation only checked that the URL was syntactically valid (FILTER_VALIDATE_URL) and started with http(s)://. This is insufficient: an attacker can supply URLs such as http://169.254.169.254/latest/meta-data/ (AWS/cloud instance metadata), http://192.168.x.x/, or http://127.0.0.1/ to make the server reach internal network resources. The response is not directly returned (blind), but timing differences and error logs can be used to infer results. The issue has been fixed in version 8.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-33024?
It affects 1 product.
Products include Wwbn Avideo-Encoder.
How do I fix CVE-2026-33024?
No fix has been published for CVE-2026-33024 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-33024 being exploited?
There is no known exploitation of CVE-2026-33024 in the wild and no public exploit code.
Other vulnerabilities in WWBN AVideo-Encoder
Sources
Also known as GHSA-h9gh-866r-6vgq.