Quick answers
- Is CVE-2026-109209 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-109209 being exploited in the wild.
- How severe is CVE-2026-109209?
- Medium severity, with a CVSS score of 6.4, published 28 October 2026.
- Which products and versions are affected?
- All-in-One Video Gallery up to and including 4.9.7.
- Is there a fix for CVE-2026-109209?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-109209 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-109209?
- Check whether you run All-in-One Video Gallery at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stored cross-site scripting (XSS) vulnerability exists in the plugin's handling of the 'custom_fields[embedcode]' parameter due to insufficient input sanitization and output escaping. The vulnerability is reachable via XML-RPC requests where the save_meta_data() handler returns early because $_POST['post_type'] is absent, bypassing normal sanitization logic. The plugin grants all subscribers the publish_aiovg_videos capability by default, allowing any authenticated user to inject arbitrary web scripts that persist and execute for all subsequent page visitors.
Affected products
- All-in-One Video Gallery All-in-One Video Gallery up to and including 4.9.7
Timeline
- 2026-10-28: advisory