CVE-2023-6390Public exploitNetwork attack vector

Settings tampering via missing CSRF check

Published Jan 29, 2024 · Updated Jun 20, 2025

Cross-site request forgery in WordPress Users 1.4 and earlier allows remote attackers to change plugin settings through an administrator. The settings handler at /wp-admin/options-general.php?page=wordpress-users/wp-users.php accepts a POST with wpu_hidden=Y and attacker-chosen configuration values without validating a CSRF nonce. A logged-in Editor or Administrator must open attacker-controlled HTML, after which the forged request can alter roles, page IDs, avatar behavior, and other plugin configuration.

CVSS severity8.8
High
EPSS probability0.33%
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 WordPress Users 1.4 and earlier allows remote attackers to change plugin settings through an administrator. The settings handler at /wp-admin/options-general.php?page=wordpress-users/wp-users.php accepts a POST with wpu_hidden=Y and attacker-chosen configuration values without validating a CSRF nonce. A logged-in Editor or Administrator must open attacker-controlled HTML, after which the forged request can alter roles, page IDs, avatar behavior, and other plugin configuration.

The record

CVE
CVE-2023-6390
Published
Jan 29, 2024
Updated
Jun 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, CAPEC-62, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204.002Malicious File

Public exploit references

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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