CVE-2026-8422Network attack vector

Settings modification via missing nonce validation

Published Jun 2, 2026 · Updated Jun 2, 2026

Cross-site request forgery in Mathieu Thollet Remove meta boxes per user role 1.01 and earlier allows remote attackers to alter role settings. The remove-meta-boxes-per-user-role administration page accepts settings-update and reset requests without validating a WordPress nonce. An authenticated site administrator must follow an attacker-controlled link, after which the forged request can modify or reset per-role meta box visibility.

CVSS severity4.3
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Mathieu Thollet Remove meta boxes per user role 1.01 and earlier allows remote attackers to alter role settings. The remove-meta-boxes-per-user-role administration page accepts settings-update and reset requests without validating a WordPress nonce. An authenticated site administrator must follow an attacker-controlled link, after which the forged request can modify or reset per-role meta box visibility.

The record

CVE
CVE-2026-8422
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Mathieu Thollet
Product
Remove meta boxes per user role
Classifications
CWE-352, CAPEC-62, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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 <=1.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mathieu Thollet · Remove meta boxes per user roleversion=0 <=1.01

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204.001User Execution: Malicious Link

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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