CVE-2026-109209 The All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos plugin for WordPress is vulnerable to Stored
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-109209?
CVE-2026-109209 is a medium-severity vulnerability in plugins360 All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos, published on 28 Oct 2026.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-109209?
How do I fix CVE-2026-109209?
No fix has been published for CVE-2026-109209 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109209 being exploited?
There is no known exploitation of CVE-2026-109209 in the wild and no public exploit code.
Sources
Also known as GHSA-5g9g-cf23-c32r.