CVE-2026-15026

Import and export users and customers <= 2.4.0 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via email_template_selected AJAX Action

2026-07-09 19:58
Tiago Ventura (perses)

Strategic Overview

Status
Patched in 2.4.1
Affected Version
<= 2.4.0
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-15026
View all Import and export users and customers vulnerabilities

At a glance

CVE-2026-15026 is a medium-severity Missing Authorization vulnerability in the Import and export users and customers WordPress plugin, affecting versions <= 2.4.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.4.1; sites on affected versions should update now. Disclosed July 2026, reported by Tiago Ventura (perses).

Vulnerability Overview

The Import and export users and customers plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.4.0 via the email_template_selected. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract the post_title and raw post_content of arbitrary posts regardless of status (draft, private, future, trash, password-protected) or post type (including non-public CPTs such as WooCommerce orders and internal CRM records) by enumerating post IDs. The required codection-security nonce is exposed as inline JavaScript on any wp-admin page when ?post_type=acui_email_template is appended to the URL, which is reachable by any authenticated user including Subscribers.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Import and export users and customers <= 2.4.0 takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Import and export users and customers the fix is 2.4.1: builds <= 2.4.0 are affected, anything from 2.4.1 onward is not.

Remediation

Update to version 2.4.1, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Import and export users and customers 2.4.1 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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