---
id: CVE-2026-109209
title: >-
  All-in-One Video Gallery <= 4.9.7 - Authenticated (Subscriber+) Stored
  Cross-Site Scripting via 'embedcode' Post Meta via XML-RPC
summary: >-
  The All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo &
  Self-Hosted Videos plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the 'custom_fields[embedcode]' parameter in all versions up to,
  and inc…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: plugins360
product: >-
  All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo &
  Self-Hosted Videos
affected:
  - >-
    all-in-one_video_gallery_video_player_galleries_for_youtube_vimeo_self-hosted_videos
    <= 4.9.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-29T01:32:22.661683Z'
published: '2026-10-28'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T01:51:59.353Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109209'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/cc6b1fa7-d5f9-4aec-860e-067c26745450?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/all-in-one-video-gallery/tags/4.9.7/includes/player/base.php#L1028
  - url: >-
      https://plugins.trac.wordpress.org/browser/all-in-one-video-gallery/tags/4.9.7/includes/player/base.php#L277
  - url: >-
      https://plugins.trac.wordpress.org/browser/all-in-one-video-gallery/tags/4.9.7/admin/videos.php#L254
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3759353/all-in-one-video-gallery/trunk/includes/player/base.php
tags:
  - cve.org
epss: 0.00207
epssPercentile: 0.10907
ingestedAt: '2026-10-28T03:02:57.611Z'
---

## Overview

The All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_fields[embedcode]' parameter in all versions up to, and including, 4.9.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The sanitization bypass is possible because the save_meta_data() handler returns early when $_POST['post_type'] is absent — a condition always true during XML-RPC requests — and the plugin unconditionally grants Subscribers the publish_aiovg_videos capability, making this exploitable by any authenticated user via a single wp.newPost XML-RPC call.

## Affected

- `all-in-one_video_gallery_video_player_galleries_for_youtube_vimeo_self-hosted_videos <= 4.9.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.