GHSA-VWF8-XX3V-5QW7

Vulnerability from github – Published: 2026-06-13 12:31 – Updated: 2026-06-13 12:31
VLAI
Details

The Meow Gallery plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the REST API endpoint /wp-json/meow-gallery/v1/save_shortcode in all versions up to, and including, 5.4.4 This makes it possible for authenticated attackers, with Author-level access and above, to arbitrarily create or overwrite existing gallery shortcode records by supplying a user-controlled id value. The endpoint performs database update operations without verifying that the requesting user is authorized to modify the referenced gallery record or create their own.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-1291"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-13T10:16:18Z",
    "severity": "MODERATE"
  },
  "details": "The Meow Gallery plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the REST API endpoint /wp-json/meow-gallery/v1/save_shortcode in all versions up to, and including, 5.4.4 This makes it possible for authenticated attackers, with Author-level access and above, to arbitrarily create or overwrite existing gallery shortcode records by supplying a user-controlled id value. The endpoint performs database update operations without verifying that the requesting user is authorized to modify the referenced gallery record or create their own.",
  "id": "GHSA-vwf8-xx3v-5qw7",
  "modified": "2026-06-13T12:31:25Z",
  "published": "2026-06-13T12:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1291"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/meow-gallery/trunk/classes/rest.php"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3469543/meow-gallery"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3469543/meow-gallery/trunk/classes/rest.php"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fmeow-gallery/tags/5.4.4\u0026new_path=%2Fmeow-gallery/tags/5.4.5"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/meow-gallery"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3386ea07-9c61-4b54-a451-1178ca6325cb?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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