Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physi
- https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physi
- https://plugins.trac.wordpress.org/browser/interactive-3d-flipbook-powered-physi
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3661282%40interactive
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3ad65e10-6f99-421b-abe
FAQ
What is CVE-2026-15758?
CVE-2026-15758 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 '...
How severe is CVE-2026-15758?
CVE-2026-15758 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15758?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.