What the vulnerability does
01Description
The 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘style’ and 'mode' parameters in all versions up to, and including, 1.16.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note: This issue affects only block-based themes.
Explanation of Vulnerability in Simple Terms
02Summary
The 3D FlipBook plugin contains a stored cross-site scripting (XSS) vulnerability in versions up to 1.16.15. An authenticated user with low privileges can inject malicious JavaScript that executes in the browsers of other site visitors, potentially stealing session tokens or performing actions on their behalf. The vulnerability affects the entire site scope due to how the plugin processes and displays user-supplied content.
What an attacker can do
03Attacker Capabilities
Inject JavaScript code that runs in other users' browsers when they view affected content.
Potential impact on your site
04Site Impact
Visitors to your site may have their sessions hijacked or be tricked into performing unwanted actions.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., subscriber or contributor) on the site.
Key dates
06Disclosure timeline
June 21, 2025
CVE published
April 8, 2026
Record updated
