{
 "id": "WPSEC-2026-1556",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1556/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1556/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1556/index.md",
 "title": "BuddyPress <= 11.6.2 - Authenticated (Subscriber+) Missing Authorization to Activity Comment Creation via REST API",
 "description": "The BuddyPress plugin for WordPress is vulnerable to unauthorized activity comment creation via the activity REST API endpoint in all versions up to, and including, 11.6.2, due to a missing check on the target activity in the create permission callback. This makes it possible for authenticated attackers, with Subscriber-level access and above, to post comments on activities they are not allowed to comment on, such as activities in private or hidden groups they are not a member of.",
 "plugin": {
  "slug": "buddypress",
  "name": "BuddyPress",
  "full_name": "BuddyPress",
  "wordpress_org": "https://wordpress.org/plugins/buddypress/",
  "advisories_url": "https://wpsec.com/vuln/plugin/buddypress/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/buddypress"
 },
 "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": "11.6.3",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 11.6.3"
  ]
 },
 "introduced_in": null,
 "fixed_in": "11.6.3",
 "remediation": "Update to 11.6.3 or later.",
 "fix_released": "2026-10-22T19:16:39+00:00",
 "published": "2026-10-23T19:41:28+00:00",
 "updated": "2026-10-23T07:09:25.495945+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1556/",
  "https://plugins.svn.wordpress.org/buddypress/tags/11.6.3/",
  "https://wordpress.org/plugins/buddypress/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/buddypress",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-23"
 }
}