GHSA-V367-5MW9-22GQ

Vulnerability from github – Published: 2026-07-09 09:30 – Updated: 2026-07-09 09:30
VLAI
Details

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'note_before' and 'note_after' Shortcode Attributes in all versions up to, and including, 3.3.61 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. Because wp_kses_post filters post content on save for users without unfiltered_html, only kses-allowed tag and attribute payloads that survive save-time filtering will reach the unescaped sink; however, the sink itself remains unsafe and such payloads can still execute in the browser when a user renders the shortcode.

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-2026-14343"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-09T08:16:47Z",
    "severity": "MODERATE"
  },
  "details": "The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via \u0027note_before\u0027 and \u0027note_after\u0027 Shortcode Attributes in all versions up to, and including, 3.3.61 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. Because wp_kses_post filters post content on save for users without unfiltered_html, only kses-allowed tag and attribute payloads that survive save-time filtering will reach the unescaped sink; however, the sink itself remains unsafe and such payloads can still execute in the browser when a user renders the shortcode.",
  "id": "GHSA-v367-5mw9-22gq",
  "modified": "2026-07-09T09:30:29Z",
  "published": "2026-07-09T09:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14343"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.61/src/User/Register.php#L123"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.61/src/User/Register.php#L32"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.61/src/User/views/reg-form.php#L69"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.61/src/User/views/reg-form.php#L78"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3594267%40download-manager\u0026new=3594267%40download-manager"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/74cd34be-008c-4ff3-ae3c-417cfd2fee9b?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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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