GHSA-M7HJ-M974-FX49

Vulnerability from github – Published: 2026-04-08 00:30 – Updated: 2026-04-08 00:30
VLAI?
Details

The Smart Slider 3 plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on multiple wp_ajax_smart-slider3 controller actions in all versions up to, and including, 3.5.1.33. The display_admin_ajax() method does not call checkForCap() (which requires unfiltered_html capability), and several controller actions only validate the nonce (validateToken()) without calling validatePermission(). This makes it possible for authenticated attackers, with Contributor-level access and above, to enumerate slider metadata and create, modify, and delete image storage records by obtaining the nextend_nonce exposed on post editor pages.

Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-4065"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-07T22:16:24Z",
    "severity": "MODERATE"
  },
  "details": "The Smart Slider 3 plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on multiple wp_ajax_smart-slider3 controller actions in all versions up to, and including, 3.5.1.33. The display_admin_ajax() method does not call checkForCap() (which requires unfiltered_html capability), and several controller actions only validate the nonce (validateToken()) without calling validatePermission(). This makes it possible for authenticated attackers, with Contributor-level access and above, to enumerate slider metadata and create, modify, and delete image storage records by obtaining the nextend_nonce exposed on post editor pages.",
  "id": "GHSA-m7hj-m974-fx49",
  "modified": "2026-04-08T00:30:26Z",
  "published": "2026-04-08T00:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4065"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/Framework/Image/ControllerAjaxImage.php#L37"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Application/Admin/Sliders/ControllerAjaxSliders.php#L26"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Platform/WordPress/Admin/AdminHelper.php#L155"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Platform/WordPress/HelperTinyMCE.php#L30"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/smart-slider-3/trunk/Nextend/SmartSlider3/Platform/WordPress/Admin/AdminHelper.php#L155"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3489689%40smart-slider-3%2Ftrunk\u0026old=3439582%40smart-slider-3%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/53a08b59-b7e0-419a-bfc3-528bcddb1ac2?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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