Video Gallery – YouTube Gallery, Playlist & Video Grid: Sensitive information exposure
Video Gallery – YouTube Gallery, Playlist & Video Grid is affected by sensitive information exposure. Exploitation requires at least subscriber-level access. Successful exploitation can disclose data that should not be available to the caller. The published affected range is <= 4.0.3.
- Component
- Video Gallery – YouTube Gallery, Playlist & Video Grid
- Plugin slug
youtube-showcase- Affected
- <= 4.0.3
- Safe version
> 4.0.3- Published
- Jul 01, 2026
This CVE was published Jul 01, 2026 and is one of 4 known issues for this plugin.
Update, patch or deactivate.
Update Video Gallery – YouTube Gallery, Playlist & Video Grid to a release after 4.0.3, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Youtube Showcase plugin for WordPress is vulnerable to Arbitrary Function Call in versions up to and including 4.0.3. This is due to insufficient validation of the 'path' parameter in the emd_delete_file() AJAX handler in includes/common-functions.php. The user-supplied value is passed through sanitize_text_field(), has its trailing '_PLUGIN_DIR' substring stripped, and is then invoked as a PHP function name with no arguments via `$sess_name()`. The handler is gated only by a nonce — no current_user_can() check is present — and the nonce is emitted on any front-end page that renders a form shortcode containing file fields. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke arbitrary zero-argument PHP functions (such as phpinfo, phpversion, get_defined_vars, error_get_last), resulting in sensitive information disclosure and potential further compromise depending on the functions available in the environment.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H