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.
CVE-2026-12409
Score 4.3 from GitHub Security Advisory published 2026-07-16. a secondary CVSS source baseline 4.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(high)
- EPSS
- 3.0%
- KEV
- Not listed
Published
July 16, 2026
Last Modified
July 17, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L111
- security@wordfencehttps://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L19
- security@wordfencehttps://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L111
- security@wordfencehttps://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L19
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3444409%40page-builder-add&new=3444409%40page-builder-add
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f5-783f9402dd3c?source=cve
Vendor Advisories for CVE-2026-12409(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 14× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-17 14:03 UTCEG score recompute
- 2026-07-17 14:03 UTCGHSA enrichment
- 2026-07-17 13:05 UTCEG score recompute
- 2026-07-17 13:05 UTCGHSA enrichment
- 2026-07-17 03:07 UTCGHSA enrichment
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-16 03:19 UTCEG score recompute
- 2026-07-16 03:19 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-12409?
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Is CVE-2026-12409 actively exploited?
What is the CVSS score of CVE-2026-12409?
How do I remediate CVE-2026-12409?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-12409
Is Your Infrastructure Affected by CVE-2026-12409?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.