All-in-One Video Gallery <= 5.0.0 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via 'track' Post Meta 'label' Field

Medium 6.4 CWE-79Fixed in 5.1.0
ID
WPSEC-2026-2446
Plugin
All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos (all-in-one-video-gallery)
Affected
all versions before 5.1.0
Remediation
Update to 5.1.0 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-79
Usage
Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-04
Attack surface
All-in-One Video Gallery on WPSec AttackSurface
Fix released
Published

Description

The All-in-One Video Gallery plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'label' field of the 'track' and 'chapter' video post meta in all versions up to, and including, 5.0.0 due to insufficient sanitization on save and insufficient escaping on output. The labels are only escaped with esc_attr(), which the browser decodes before the Plyr.js player inserts them into the page as HTML. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts that execute whenever a user views the affected video player.

References

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