CVE-2025-14288 Missing authorization in Mixed Media Gallery Blocks

Medium 4.3 Published Updated

Authenticated contributors can modify arbitrary plugin settings due to insufficient capability checks in the AJAX handler.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-14288?

CVE-2025-14288 is a medium-severity missing authorization vulnerability in gallerycreator Mixed Media Gallery Blocks, published on 13 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Gallery Blocks with Lightbox. Image Gallery, (HTML5 video , YouTube, Vimeo) Video Gallery and Lightbox for native gallery plugin for WordPress is vulnerable to unauthorized modification of plugin settings in all versions up to, and including, 3.3.0. This is due to the plugin using the `edit_posts` capability check instead of `manage_options` for the `update_option` action type in the `pgc_sgb_action_wizard` AJAX handler. This makes it possible for authenticated attackers, with Contributor-level access and above, to modify arbitrary plugin settings prefixed with `pgc_sgb_*`.

Weakness: CWE-862

Which versions are affected by CVE-2025-14288?

How do I fix CVE-2025-14288?

No fix has been published for CVE-2025-14288 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-14288 being exploited?

There is no known exploitation of CVE-2025-14288 in the wild and no public exploit code.

Sources

Also known as GHSA-65gc-f272-q9p7.

Is CVE-2025-14288 in your software?

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