# CVE-2026-8940: WordPress WP Meta Sort Posts CSRF in msp-options.php

Source: https://junglewise.ai/threats/cve-2026-8940-wordpress-wp-meta-sort-posts-csrf-in-msp-options-php  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-09. Updated: 2026-06-09  
License: CC BY 4.0 with a link back

CVE-2026-8940 · Severity: medium · CVSS 4.3 · Published 2026-06-09

The WP Meta Sort Posts plugin for WordPress, which helps manage how posts are displayed, contains a security flaw that allows unauthorized changes to its settings. By tricking a site administrator into clicking a malicious link, an attacker can remotely modify plugin configurations such as navigation locations and file paths. This could disrupt how content is presented to visitors or lead to further site instability.

## Quick answers

**Is CVE-2026-8940 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8940 being exploited in the wild.

**How severe is CVE-2026-8940?** Medium severity, with a CVSS score of 4.3, published 9 June 2026.

**Which products and versions are affected?** WP Meta Sort Posts up to, and including, 0.9.

**Is there a fix for CVE-2026-8940?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-8940 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-8940?** Check whether you run WP Meta Sort Posts at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The WP Meta Sort Posts plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) due to missing or incorrect nonce validation on the top-level included script in msp-options.php. This vulnerability affects all versions up to and including 0.9. An unauthenticated attacker can exploit this by crafting a malicious request and using social engineering to induce a site administrator to execute it (e.g., via a phishing link). Successful exploitation allows the attacker to modify the plugin's 'msp_loop_file' and 'msp_nav_location' settings. No patch has been explicitly confirmed in the provided advisory, though the vulnerability is documented for versions <= 0.9.

## Affected products

- WordPress Plugin WP Meta Sort Posts up to, and including, 0.9

## Timeline

- 2026-06-09: disclosed
- 2026-06-09: advisory

## References

- [https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php](https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php)
- [https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php](https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php)
- [https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php](https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/msp-options.php)
- [https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/wp-meta-sort-posts.php](https://plugins.trac.wordpress.org/browser/wp-meta-sort-posts/trunk/wp-meta-sort-posts.php)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/06efa097-38dc-4499-b163-7a6254b25f72?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/06efa097-38dc-4499-b163-7a6254b25f72?source=cve)