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MEDIUM

Greenshift <= 12.8.3 - Missing Authorization to Unauthenticated Private Reusable Block Disclosure via 'gspb_el_reusable_load'

Published Mar 6, 2026

Description

The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 12.8.3. This is due to missing authorization and post status validation in the `gspb_el_reusable_load()` AJAX handler. The handler accepts an arbitrary `post_id` parameter and renders the content of any `wp_block` post without checking `current_user_can('read_post', $post_id)` or verifying the post status. Combined with the nonce being exposed to unauthenticated users on any public page using the `[wp_reusable_render]` shortcode with `ajax="1"`, this makes it possible for unauthenticated attackers to retrieve the rendered HTML content of private, draft, or password-protected reusable blocks.

Affected products

Remediation

No remediation recorded yet.

References (6)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner Wordfence
Published Mar 6, 2026
Updated Apr 8, 2026
Reserved Feb 11, 2026

CISA Vulnrichment

Updated Mar 9, 2026

NVD

Status Deferred
Modified Jun 17, 2026

Red Hat

No data

ENISA EUVD

Assigner Wordfence
Published Mar 6, 2026
Updated Apr 8, 2026

GitHub

No data