CVE-2026-8940
Deferred Deferred - Pending Action

Cross-Site Request Forgery in WP Meta Sort Posts Plugin

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Wordfence

Description
The WP Meta Sort Posts plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.9. This is due to missing or incorrect nonce validation on the top-level included script in msp-options.php. This makes it possible for unauthenticated attackers to change the plugin's msp_loop_file and msp_nav_location settings via a forged request via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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Meta Information

Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-29
AI Q&A
2026-06-09
EPSS Evaluated
2026-06-28
NVD
CVE-2026-8940
EUVD
EUVD-2026-35300

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_meta_sort_posts plugin to 0.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

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Impact Analysis

This vulnerability allows an unauthenticated attacker to modify the plugin's settings by tricking an administrator into executing a forged request. Specifically, the attacker can change the msp_loop_file and msp_nav_location settings, potentially altering the behavior or display of the WordPress site. While it does not directly compromise confidentiality or availability, it can lead to unauthorized changes that may affect site integrity.

Executive Summary

The WP Meta Sort Posts plugin for WordPress has a Cross-Site Request Forgery (CSRF) vulnerability in all versions up to and including 0.9. This occurs because the plugin's script in msp-options.php lacks proper nonce validation. As a result, an attacker can trick a site administrator into performing an action, such as clicking a malicious link, which allows the attacker to change certain plugin settings without authentication.

Mitigation Strategies

To mitigate this vulnerability, you should update the WP Meta Sort Posts plugin to a version later than 0.9 where the nonce validation issue is fixed.

Additionally, ensure that site administrators are cautious about clicking on untrusted links to avoid being tricked into performing unauthorized actions.

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