GHSA-XRJC-4WC6-P53X

Vulnerability from github – Published: 2026-08-16 06:30 – Updated: 2026-08-16 06:30
VLAI
Details

The WC Product Table Lite plugin for WordPress is vulnerable to CSS Injection in versions up to, and including, 5.6.0 via the 'laptop_scroll_offset' shortcode attribute exposed through the unauthenticated wcpt_ajax() AJAX handler. The handler is registered for wp_ajax_nopriv_wcpt_ajax, JSON-decodes attacker-supplied attributes, only allowlists key names (not values), applies a preg_replace that strips only [ ] < >, and passes the value through do_shortcode into wcpt_style__sticky_sidebar(), where it is interpolated verbatim into inline CSS ('top: {$top}px;' and 'max-height: calc(100vh - {$top}px);') with no numeric casting or CSS escaping. This makes it possible for unauthenticated attackers to inject arbitrary CSS declarations and rules on pages rendering a product table with sticky sidebar enabled, which can be leveraged for data exfiltration (via attribute-selector + background-image URLs), UI redressing, and phishing that bypasses CSPs permitting inline styles.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-15441"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-16T05:16:47Z",
    "severity": "MODERATE"
  },
  "details": "The WC Product Table Lite plugin for WordPress is vulnerable to CSS Injection in versions up to, and including, 5.6.0 via the \u0027laptop_scroll_offset\u0027 shortcode attribute exposed through the unauthenticated wcpt_ajax() AJAX handler. The handler is registered for wp_ajax_nopriv_wcpt_ajax, JSON-decodes attacker-supplied attributes, only allowlists key names (not values), applies a preg_replace that strips only [ ] \u003c \u003e, and passes the value through do_shortcode into wcpt_style__sticky_sidebar(), where it is interpolated verbatim into inline CSS (\u0027top: {$top}px;\u0027 and \u0027max-height: calc(100vh - {$top}px);\u0027) with no numeric casting or CSS escaping. This makes it possible for unauthenticated attackers to inject arbitrary CSS declarations and rules on pages rendering a product table with sticky sidebar enabled, which can be leveraged for data exfiltration (via attribute-selector + background-image URLs), UI redressing, and phishing that bypasses CSPs permitting inline styles.",
  "id": "GHSA-xrjc-4wc6-p53x",
  "modified": "2026-08-16T06:30:25Z",
  "published": "2026-08-16T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15441"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/main.php#L2677"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/main.php#L2686"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/style-functions.php#L995"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/main.php#L2677"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/main.php#L2686"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/style-functions.php#L995"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3638932%40wc-product-table-lite\u0026new=3638932%40wc-product-table-lite"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6c0a8be1-8853-4863-90e5-af3831f800e9?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}



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