CVE-2026-33024

CRITICAL

AVideo-Encoder has Unauthenticated Blind Server-Side Request Forgery via Public Thumbnail Generator

Title source: cna

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.

Scores

CVSS v3 9.1
EPSS 0.0008
EPSS Percentile 24.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-918
Status published
Products (2)
wwbn/avideo-encoder < 8.0
WWBN/AVideo-Encoder < 8.0
Published Mar 20, 2026
Tracked Since Mar 20, 2026