Quick answers
- Is CVE-2026-120408 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-120408 being exploited in the wild.
- How severe is CVE-2026-120408?
- Informational severity, published 6 November 2026.
- Which products and versions are affected?
- All-in-One Video Gallery before 5.1.0.
- Is there a fix for CVE-2026-120408?
- Yes: fixed in 5.1.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-120408 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-120408?
- 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.
How to fix
- Fixed in: 5.1.0
Technical details
A stored cross-site scripting (XSS) vulnerability exists in the plugin due to insufficient output escaping of video thumbnail URLs in the admin video list and missing sanitization when the value is written outside the plugin's editor. An unauthenticated or low-privileged user (Subscriber role) can inject malicious JavaScript through the image post meta field, which will be executed in administrators' browsers when they view the admin page.
Affected products
- All-in-One Video Gallery All-in-One Video Gallery before 5.1.0
Timeline
- 2026-11-03: disclosed
- 2026-11-06: advisory