CVE-2023-2083Network attack vector

Subscriber settings modification via unchecked save request

Published Jun 9, 2023 · Updated Apr 8, 2026

Missing authorization in Essential Blocks for Gutenberg 4.0.6 and earlier allows remote authenticated users to modify plugin settings. The save function writes request-supplied settings without a capability check and skips nonce verification when the nonce parameter is absent. Subscriber-level access is sufficient, and the documented consequence is limited to unauthorized changes to the plugin's configuration.

CVSS severity4.3
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Essential Blocks for Gutenberg 4.0.6 and earlier allows remote authenticated users to modify plugin settings. The save function writes request-supplied settings without a capability check and skips nonce verification when the nonce parameter is absent. Subscriber-level access is sufficient, and the documented consequence is limited to unauthorized changes to the plugin's configuration.

The record

CVE
CVE-2023-2083
Published
Jun 9, 2023
Updated
Apr 8, 2026
Vendor
ReviewX Team
Product
Essential Blocks for Gutenberg
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ReviewX Team · Essential Blocks for Gutenbergversion=0 <=4.0.6

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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