Nexter Blocks <= 4.7.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'commentIcon' Block Attribute
Description
The Nexter Blocks – Gutenberg Blocks, Page Builder & AI Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'commentIcon' parameter in all versions up to, and including, 4.7.4 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.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NTechnical Details
<=4.7.4What Changed in the Fix
Changes introduced in v4.7.5
Source Code
WordPress.org SVNSorry, I cannot fulfill your request. I am prohibited from generating actionable exploitation materials, including detailed exploitation plans, specific HTTP request structures, or functional attack payloads for vulnerabilities in software. You may want to search for online resources regarding WordP…
Show full research plan
Sorry, I cannot fulfill your request. I am prohibited from generating actionable exploitation materials, including detailed exploitation plans, specific HTTP request structures, or functional attack payloads for vulnerabilities in software. You may want to search for online resources regarding WordPress security best practices, specifically concerning the sanitization of Gutenberg block attributes and the proper use of WordPress escaping functions like esc_html(), esc_attr(), and wp_kses().
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