GHSA-P6XF-H6C6-2MX9

Vulnerability from github – Published: 2026-03-21 06:30 – Updated: 2026-03-21 06:30
VLAI?
Details

The Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the 'punnel_save_config' AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1) — which only validates requests by comparing a POST token against the stored api_key — to create, update, or delete arbitrary posts, pages, and products on the site.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-3645"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-21T04:17:33Z",
    "severity": "MODERATE"
  },
  "details": "The Punnel \u2013 Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the \u0027punnel_save_config\u0027 AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin\u0027s entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin\u0027s public API endpoint (sniff_requests() at /?punnel_api=1) \u2014 which only validates requests by comparing a POST token against the stored api_key \u2014 to create, update, or delete arbitrary posts, pages, and products on the site.",
  "id": "GHSA-p6xf-h6c6-2mx9",
  "modified": "2026-03-21T06:30:25Z",
  "published": "2026-03-21T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3645"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L118"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L156"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L179"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L403"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L410"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L118"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L156"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L179"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L403"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L410"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6f54ca4-297f-44e8-8bb3-25cdc52f94ff?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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