CVE-2026-12409 json
Landing Page Builder <= 1.5.3.6 - Cross-Site Request Forgery to ulpb_admin_data AJAX Action
published 2026-07-16 3 mo ago modified 2026-07-17 3 mo ago also EUVD-2026-44858
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
Affected products
- umarbajwa Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f5-783f9402dd3c?source=cve
- plugins.trac.wordpress.org /browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L111
- plugins.trac.wordpress.org /browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L19
- plugins.trac.wordpress.org /browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L111
- plugins.trac.wordpress.org /browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L19
- plugins.trac.wordpress.org /changeset?reponame=&old=3444409%40page-builder-add&new=3444409%40page-builder-add
Sources
- CVE List CVE-2026-12409
- NVD CVE-2026-12409
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.