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CVE-2026-33024

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

Published: Mar 20, 2026Updated: Mar 24, 2026 Sources: CVE List NVDCWE-918
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.4%
Top 65.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

avideo-encoderwwbnWeb & CMS Plugins
AVideo-EncoderWWBNWeb & CMS Plugins
wwbncommercialWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/WWBN/AVideo-Encoder/commit/f9df098534a0e05fd431e771ac9d70f0f36f1c06
github.com
https://github.com/WWBN/AVideo-Encoder/security/advisories/GHSA-h9gh-866r-6vgq
github.com

Timeline

Published
Mar 20, 2026
Last Updated
Mar 24, 2026

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