CVE-2026-12409 PUBLISHED

Landing Page Builder <= 1.5.3.6 - Cross-Site Request Forgery to ulpb_admin_data AJAX Action

Assigner: Wordfence
Reserved: 16.06.2026 Published: 16.07.2026 Updated: 16.07.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS Score: 4.3

Product Status

Vendor umarbajwa
Product Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages
Versions Default: unaffected
  • affected from 0 to 1.5.3.6 (incl.)

Credits

  • M.Fahad Khan finder

References

Problem Types

  • CWE-352 Cross-Site Request Forgery (CSRF) CWE