GHSA-5VXP-83XG-5C9F

Vulnerability from github – Published: 2026-05-15 09:31 – Updated: 2026-05-15 09:31
VLAI?
Details

The Quick Playground plugin for WordPress is vulnerable to Path Traversal in versions up to and including 1.3.3. This is due to insufficient path validation in the qckply_zip_theme() function, which appends a user-controlled 'stylesheet' parameter directly to the theme root directory path without sanitizing directory traversal sequences. This makes it possible for unauthenticated attackers to trigger the creation of a ZIP archive containing arbitrary files from the server's filesystem — including wp-config.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-6403"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-15T09:16:16Z",
    "severity": "HIGH"
  },
  "details": "The Quick Playground plugin for WordPress is vulnerable to Path Traversal in versions up to and including 1.3.3. This is due to insufficient path validation in the qckply_zip_theme() function, which appends a user-controlled \u0027stylesheet\u0027 parameter directly to the theme root directory path without sanitizing directory traversal sequences. This makes it possible for unauthenticated attackers to trigger the creation of a ZIP archive containing arbitrary files from the server\u0027s filesystem \u2014 including wp-config.",
  "id": "GHSA-5vxp-83xg-5c9f",
  "modified": "2026-05-15T09:31:32Z",
  "published": "2026-05-15T09:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6403"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L62"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L631"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L162"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L248"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L62"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L631"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L162"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L248"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3514238%40quick-playground\u0026new=3514238%40quick-playground\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3523317%40quick-playground\u0026new=3523317%40quick-playground\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a39dccb6-b635-44af-b0e0-c3010b719773?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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