CVE-2026-7622
Received Received - Intake

ThumbPress Plugin Unauthorized Deactivation via AJAX

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: Wordfence

Description
The ThumbPress plugin for WordPress is vulnerable to unauthorized access in versions up to and including 6.2.1. This is due to missing capability checks and nonce verification in the send_deactivation_survey() function registered via the wp_ajax_pl-plugin-deactivation AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to deactivate the ThumbPress plugin on the affected site by sending a crafted POST request to admin-ajax.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-7622
EUVD
EUVD-2026-84308

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
thumbpress thumbpress to 6.2.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The ThumbPress WordPress plugin up to version 6.2.1 has a vulnerability due to missing capability checks and nonce verification in the send_deactivation_survey() function. This flaw allows authenticated attackers with Subscriber-level access or higher to deactivate the plugin by sending a specially crafted POST request to admin-ajax.

Detection Guidance

Check WordPress sites for the ThumbPress plugin version 6.2.1 or lower. Look for unauthorized deactivation attempts in server logs by searching for POST requests to admin-ajax.php with the wp_ajax_pl-plugin-deactivation action.

Impact Analysis

An attacker could deactivate the ThumbPress plugin on your WordPress site, potentially disrupting functionality that relies on it. This could lead to loss of features, broken site elements, or other operational issues depending on how the plugin is used.

Compliance Impact

This vulnerability allows authenticated attackers with Subscriber-level access to deactivate the ThumbPress plugin. While it does not directly expose sensitive data, unauthorized plugin deactivation could disrupt security controls or logging mechanisms, potentially impacting compliance with standards like GDPR or HIPAA that require continuous monitoring and protection of personal data.

Mitigation Strategies
  • Update the ThumbPress plugin to the latest version if available.
  • Remove or disable the ThumbPress plugin if no update is available.
  • Review user roles and permissions to ensure only necessary access is granted.

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