{
 "id": "WPSEC-2026-0879",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0879/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0879/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0879/index.md",
 "title": "GS Team Members <= 2.8.2 - Authenticated (Subscriber+) Missing Authorization to Freemius Account Connection",
 "description": "The Team Members plugin for WordPress is vulnerable to unauthorized modification of data via the opt-in/connect handler (_install_with_new_user) of the bundled Freemius SDK in all versions up to, and including, 2.8.2, due to a missing capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to complete the Freemius opt-in for the site with attacker-supplied account and install keys, or put it into pending activation. This can link the site's Freemius connection to an account the attacker controls and change the tracking permissions.",
 "plugin": {
  "slug": "gs-team-members",
  "name": "GS Team Members",
  "full_name": "Team Members – A WordPress Team Plugin with Gallery, Grid, Carousel, Slider, Table, List, and More",
  "wordpress_org": "https://wordpress.org/plugins/gs-team-members/",
  "advisories_url": "https://wpsec.com/vuln/plugin/gs-team-members/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/gs-team-members"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 4.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.8.3",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.8.3"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.8.3",
 "remediation": "Update to 2.8.3 or later.",
 "fix_released": "2026-10-13T09:30:55+00:00",
 "published": "2026-10-14T09:47:31+00:00",
 "updated": "2026-10-13T12:13:28.703678+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0879/",
  "https://plugins.svn.wordpress.org/gs-team-members/tags/2.8.3/",
  "https://wordpress.org/plugins/gs-team-members/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/gs-team-members",
 "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": "2026-10-14"
 }
}