CVE-2025-34434: AVideo < 20.1 ImageGallery Plugin Unauthenticated File Upload and Deletion

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-17 · updated 2026-06-17
Weakness: CWE-306

Description

AVideo versions prior to 20.1 with the ImageGallery plugin enabled is vulnerable to unauthenticated file upload and deletion. Plugin endpoints responsible for managing gallery images fail to enforce authentication checks and do not validate ownership, allowing unauthenticated attackers to upload or delete images associated with any image-based video.

Affected products

WWBN AVideo: before 20.0 — fixed in 20.0

How to fix

Upgrade to a fixed version: WWBN AVideo 20.0. Check the vendor advisory for mitigations.

References

https://chocapikk.com/posts/2025/avideo-security-vulnerabilities/
https://github.com/WWBN/AVideo/commit/4a53ab2056
https://github.com/WWBN/AVideo/commit/c279999cbd
https://www.vulncheck.com/advisories/avideo-imagegallery-plugin-unauthenticated-file-upload-and-deletion

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