GHSA-FM2P-2WHF-W32J

Vulnerability from github – Published: 2026-05-14 06:31 – Updated: 2026-05-14 06:31
VLAI
Details

The Envira Gallery Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in versions up to and including 1.12.4. This is due to insufficient input sanitization in the update_gallery_data() function and improper output escaping in the gallery_init() function. The sanitize_config_values() function only sanitizes the justified_gallery_theme and justified_row_height parameters, but does not sanitize the arrows parameter. When the arrows value is output in the inline JavaScript configuration, it uses esc_attr() which is designed for HTML attribute contexts, not JavaScript contexts, allowing JavaScript expression injection. This makes it possible for authenticated attackers, with Author-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-2026-5361"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-14T05:16:44Z",
    "severity": "MODERATE"
  },
  "details": "The Envira Gallery Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in versions up to and including 1.12.4. This is due to insufficient input sanitization in the update_gallery_data() function and improper output escaping in the gallery_init() function. The sanitize_config_values() function only sanitizes the justified_gallery_theme and justified_row_height parameters, but does not sanitize the arrows parameter. When the arrows value is output in the inline JavaScript configuration, it uses esc_attr() which is designed for HTML attribute contexts, not JavaScript contexts, allowing JavaScript expression injection. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
  "id": "GHSA-fm2p-2whf-w32j",
  "modified": "2026-05-14T06:31:32Z",
  "published": "2026-05-14T06:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5361"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/envira-gallery-lite/tags/1.12.4/includes/global/rest.php#L163"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/envira-gallery-lite/tags/1.12.4/includes/global/shortcode.php#L1067"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/envira-gallery-lite/trunk/includes/global/rest.php#L163"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/envira-gallery-lite/trunk/includes/global/shortcode.php#L1067"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3514026/envira-gallery-lite/trunk/includes/global/shortcode.php?old=3465371\u0026old_path=envira-gallery-lite%2Ftrunk%2Fincludes%2Fglobal%2Fshortcode.php"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d2b1e973-f22d-4e69-b3b8-d6ea5df3f047?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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