PDF Viewer Block for Gutenberg
PDF Viewer Block for Gutenberg has one disclosed vulnerability in the WordSec catalog, all reported in 2021; it is fixed as of September 2026. Their average CVSS score is 5.4, and the most serious one scores 5.4 out of 10.
The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).
The one issue recorded for PDF Viewer Block for Gutenberg has a vendor fix available, so running the current release closes it.
All of these findings were reported by apple502j. PDF Viewer Block for Gutenberg is installed on roughly 10,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 7.1.
CVE-2021-24760Gutenberg PDF Viewer Block <= 1.0 - Cross-Site Scripting
Read the full analysisVulnerability Records

PDF Viewer Block for Gutenberg
Author
Jb Audras
A simple, responsive and 100% free Gutenberg Block to display PDF Viewers / Readers on your website. You can easily configure the Reader’s width, height and alignment on the fly. Compatibility: – Fully responsive – Works fine on Chrome, Firefox, Opera, Edge and IE11 – If javascript is disabled, a download link is provided as a fallback This plugin uses PDF.js library, provided by Mozilla under Apache license.
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C