CVE-2025-4684: Blockspare — News, Magazine And Blog Addons For Gutenberg Block Editor

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The BlockSpare: Gutenberg Blocks & Patterns for Blogs, Magazines, Business Sites – Post Grids, Sliders, Carousels, Counters, Page Builder & Starter Site Imports, No Coding Needed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the HTML attributes of Image Carousel and Image Slider widgets in all versions up to, and including, 3.2.13.1 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.

Affected products

• Blockspare Blockspare — News, Magazine And Blog Addons For Gutenberg Block Editor: up to and including 3.2.13.1

Published 2025-08-01. Last modified 2026-06-17.