CVE-2023-2083
Essential Blocks <= 4.0.6 - Missing Authorization via save
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | wpdevteam |
| Product | gutenberg essential blocks – page builder for gutenberg blocks & patterns |
| Published | Jun 9, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpdevteam / Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns
0 ≤ 4.0.6
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/f8bf0933-1c97-4374-b323-c55b91fe4d27?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/essential-blocks/tags/4.0.6/includes/Admin/Admin.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2900595%40essential-blocks%2Ftrunk&old=2900029%40essential-blocks%2Ftrunk&sfp_email=&sfph_mail=#file2
Credits
Marco Wotschka