MEDIUM
CVE-2026-15758
CVSS
5.3
Description
The 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.16.20 via the 'id' parameter. This makes it possible for unauthenticated attackers to extract sensitive data including the full metadata payload of password-protected flipbooks — including title, outline, props, and the serialized data blob containing the underlying PDF file's direct URL — bypassing WordPress post-password confidentiality. Flipbook post IDs can be pre-enumerated via the also-unauthenticated fb3d_send_posts AJAX action, requiring no prior knowledge to target specific flipbooks.
Weakness (CWE)
CWE-200
Information Exposure
EPSS Score
0.27%
Probability of exploitation in next 30 days
20th percentile
References
https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physics-engine/trunk/inc/ajax-get.php#L119
https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physics-engine/trunk/inc/ajax-get.php#L136
https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physics-engine/trunk/inc/ajax-get.php#L142
https://plugins.trac.wordpress.org/changeset?reponame=&old=3661282%40interactive-3d-flipbook-powered-physics-engine&new=3661282%40interactive-3d-flipbook-powered-physics-engine
https://www.wordfence.com/threat-intel/vulnerabilities/id/3ad65e10-6f99-421b-abec-ed374769dfcf?source=cve
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.