CVE-2026-12409

Vulnerability Description

The Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.3.6. This is due to missing or incorrect nonce validation on the ulpb_admin_ajax function. This makes it possible for unauthenticated attackers to create, update, retitle, or change the post status, slug, and type of arbitrary posts and write ULPB_DATA post meta via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This attack requires the victim to hold an editor-level or administrator session, as the wp_ajax_ulpb_admin_data action enforces a capability check that the forged request must satisfy by inheriting the logged-in user's session cookies.

CVSS Score

Related Weaknesses (CWE)

References

• https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/c
• https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/c
• https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/c
• https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/c
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3444409%40page-builde
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f