{
 "id": "WPSEC-2026-0609",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0609/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0609/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0609/index.md",
 "title": "WPComplete <= 2.9.5.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Course Name",
 "description": "The WPComplete plugin for WordPress is vulnerable to Stored Cross-Site Scripting via course names in versions 2.3 up to, and including, 2.9.5.7. The cause is insufficient input sanitization and output escaping: a course name submitted through the post metabox or the posts-list 'Assign to' bulk action is decoded again whenever it is read back and printed without escaping in the quick-edit course dropdown, the posts-list course column, the bulk-action inline script, the dashboard widget and the course and user completion reports. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute when an administrator views the affected admin pages.",
 "plugin": {
  "slug": "wpcomplete",
  "name": "WPComplete",
  "full_name": "WPComplete",
  "wordpress_org": "https://wordpress.org/plugins/wpcomplete/",
  "advisories_url": "https://wpsec.com/vuln/plugin/wpcomplete/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/wpcomplete"
 },
 "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": "2.3",
    "from_inclusive": true,
    "to": "2.9.5.8",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 2.3 before 2.9.5.8"
  ]
 },
 "introduced_in": "2.3",
 "fixed_in": "2.9.5.8",
 "remediation": "Update to 2.9.5.8 or later.",
 "fix_released": "2026-10-07T00:43:19+00:00",
 "published": "2026-10-08T01:41:04+00:00",
 "updated": "2026-10-07T15:31:04.054337+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0609/",
  "https://plugins.svn.wordpress.org/wpcomplete/tags/2.9.5.8/",
  "https://wordpress.org/plugins/wpcomplete/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/wpcomplete",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "None seen",
  "as_of": "2026-10-07"
 }
}