CVE-2026-12409
Description
The Landing Page Builder โ 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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L111
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L19
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L111
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L19
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3444409%40page-builder-add&new=3444409%40page-builder-add
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f5-783f9402dd3c?source=cve
CWEs
CWE-352
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.