CVE-2026-18943

Deferred Deferred - Pending Action

Unauthenticated Metadata Access in WPC Admin Columns WordPress Plugin

Publication date: 2026-08-12

Last updated on: 2026-08-26

Assigner: WPScan

Description

The WPC Admin Columns WordPress plugin before 2.3.4 does not have authorisation checks in one of its AJAX actions, allowing users with a role as low as subscriber to read arbitrary user, post and term metadata, including data belonging to administrators.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-12

Last Modified

2026-08-26

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-31

NVD

CVE-2026-18943

EUVD

EUVD-2026-57103

Affected Vendors & Products

Vendor	Product	Version / Range
wpc_admin_columns	wpc_admin_columns	to 2.3.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability affects the WPC Admin Columns WordPress plugin before version 2.3.4. It allows users with a Subscriber role or higher to read arbitrary user, post, and term metadata, including sensitive data belonging to administrators. This happens because the plugin lacks proper authorization checks in one of its AJAX actions.

Detection Guidance

Check if the WPC Admin Columns plugin is installed and verify its version. If it is below 2.3.4, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' if using WP-CLI to check the plugin version.

Impact Analysis

Unauthorized users could access sensitive metadata, including administrator data, potentially leading to data breaches or privacy violations. This could expose personal or confidential information stored in the WordPress site.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA if it results in unauthorized access to personal or protected health information. Organizations may face legal penalties or reputational damage due to data exposure.

Mitigation Strategies

Update the WPC Admin Columns plugin to version 2.3.4 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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