Information disclosure in Nimble Page Builder
CVE-2026-16557
The Nimble Page Builder WordPress plugin through 3.3.8 does not perform an authorization check when returning page-builder content through an authenticated AJAX action, allowing any authenticated user (Subscriber+) to disclose the page-builder content of arbitrary non-public (draft, pending, private, scheduled) posts and pages.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Unknown Nimble Page Builder
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-16557?
- CVE-2026-16557 is a medium-severity vulnerability in Nimble Page Builder, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-09-19.
- How severe is CVE-2026-16557?
- Medium severity. CVSS v3 base score is 4.3 out of 10.