The Meow Gallery WordPress plugin before 5.5.5 does not properly sanitize a user-supplied value before concatenating it into a shortcode string that it passes to the WordPress shortcode parser on a publicly reachable endpoint, allowing unauthenticated users to execute arbitrary registered shortcodes and disclose non-public gallery content.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Meow Gallery Plugin | — | Update meow-gallery plugin to version 5.5.5, or a newer patched version | Oct 30, 2026 | Sep 18, 2026 |
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