WP Grid Builder: Privilege escalation or authentication bypass
WP Grid Builder is affected by privilege escalation or authentication bypass. Exploitation requires at least subscriber-level access. A successful request can grant permissions or access that the caller should not possess. The published affected range is <= 2.3.3.
- Component
- WP Grid Builder
- Plugin slug
wp-grid-builder- Affected
- <= 2.3.3
- Safe version
> 2.3.3- Published
- Jul 11, 2026
This CVE was published Jul 11, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update WP Grid Builder to a release after 2.3.3, 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 WP Grid Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.3.3. This is due to missing authorization and meta key validation in the `update()` handler for the `/wp-json/wpgb/v2/metadata` REST endpoint. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to Administrator by updating their own `wp_capabilities` user meta with a crafted nested array payload.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H