{
 "id": "WPSEC-2026-1327",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1327/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1327/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1327/index.md",
 "title": "Interactive Content – H5P <= 1.17.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Content Tags",
 "description": "The Interactive Content – H5P plugin for WordPress is vulnerable to Stored Cross-Site Scripting via H5P content tags in all versions up to, and including, 1.17.9, due to insufficient input sanitization of tag names containing the ';' delimiter and insufficient output escaping of the tag identifier when the content list builds facet attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts that will execute whenever a user, such as an administrator, views the H5P content listing in the dashboard.",
 "plugin": {
  "slug": "h5p",
  "name": "Interactive Content – H5P",
  "full_name": "Interactive Content – H5P",
  "wordpress_org": "https://wordpress.org/plugins/h5p/",
  "advisories_url": "https://wpsec.com/vuln/plugin/h5p/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/h5p"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 6.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "1.17.10",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 1.17.10"
  ]
 },
 "introduced_in": null,
 "fixed_in": "1.17.10",
 "remediation": "Update to 1.17.10 or later.",
 "fix_released": "2026-10-20T10:57:24+00:00",
 "published": "2026-10-21T11:49:28+00:00",
 "updated": "2026-10-21T10:33:55.392143+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1327/",
  "https://plugins.svn.wordpress.org/h5p/tags/1.17.10/",
  "https://wordpress.org/plugins/h5p/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/h5p",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-21"
 }
}