Essential Blocks <= 4.0.6 - Missing Authorization via save
The Essential Blocks plugin for WordPress is vulnerable to unauthorized use of functionality due to a missing capability check on the save function in versions up to, and including, 4.0.6. This makes it possible for subscriber-level attackers to save plugin settings. While a nonce check is present, it is only executed when a nonce is provided. Not providing a nonce results in the nonce verification to be skipped. There is no capability check.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns | <= 4.0.6 | 4.0.7 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-862- Platform
- WordPress
- Package
Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns- Disclosed
- 18.04.2023
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - f8bf0933-1c97-4374-b323-c55b91fe4d27 - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 34
- First → latest
- 01.2023 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Medium 30
Disclosures per year
- 2023: 11
- 2024: 9
- 2025: 8
- 2026: 6
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Essential Blocks <= 4.0.6 - Missing Authorization via save this entry
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