GHSA-VJV3-J4FQ-22RW

Vulnerability from github – Published: 2025-12-02 15:30 – Updated: 2025-12-02 15:30
VLAI?
Details

The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'nxt-year' shortcode in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Severity ?
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2025-13731"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-02T14:16:22Z",
    "severity": "MODERATE"
  },
  "details": "The Nexter Extension \u2013 Site Enhancements Toolkit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s \u0027nxt-year\u0027 shortcode in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
  "id": "GHSA-vjv3-j4fq-22rw",
  "modified": "2025-12-02T15:30:32Z",
  "published": "2025-12-02T15:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13731"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/trunk/include/class-nexter-load-ext.php#L136"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/trunk/include/class-nexter-load-ext.php#L66"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old=3402155\u0026old_path=nexter-extension%2Ftags%2F4.4.1%2Finclude%2Fclass-nexter-load-ext.php\u0026new=3403967\u0026new_path=nexter-extension%2Ftags%2F4.4.2%2Finclude%2Fclass-nexter-load-ext.php"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/809cd97c-22ea-49e7-be46-688fefe50236?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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