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CVE-2023-2083

Essential Blocks <= 4.0.6 - Missing Authorization via save

MEDIUM
4.3
CVSS Score
Published: June 9, 2023 at 05:33 AM UTC
Updated: June 17, 2026 at 05:51 AM UTC
2 products affected across 2 vendorsEssential BlocksEssential Blocks

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Essential Blocks· Wpdeveloperwordpress-plugin
95%
v ≤ 4.0.6
Essential Blocks· Wpdevteamwordpress-plugin
60%
v ≤ 4.0.6

References (3)

Patch
Source: [email protected]
https://plugins.trac.wordpress.org/browser/essential-blocks/tags/4.0.6/includes/Admin/Admin.php
Patch
Source: [email protected]
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
Third Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/f8bf0933-1c97-4374-b323-c55b91fe4d27?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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