The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 4.8.3. This makes it possible for authenticated attackers, with Contributor-level access and above, to perform an unauthorized action.
CVE-2025-26871 is a medium severity with CVSS 4.3 Vulnerability issue affecting the Plugin Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns. It affects Versions up to 4.8.3 and is fixed in 4.8.4.
CVE-2025-26871 is tracked for the Plugin Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns as medium severity with CVSS 4.3. The affected range is Versions up to 4.8.3. Update Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns to 4.8.4 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
essential-blocks
View on wordpress.org
|
| CVE | CVE-2025-26871 |
| Patched Versions |
4.8.4
|
| Affected Versions |
Versions up to 4.8.3
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Essential Blocks <= 4.4.2 - Unauthenticated Local File Inclusion
Essential Blocks <= 5.7.1 - Authenticated (Author+) Server-Side Request Forgery
Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns <= 5.7.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Slider and Post Carousel Widgets
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Essential Blocks for Gutenberg <= 4.8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
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