{
 "id": "WPSEC-2026-0858",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0858/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0858/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0858/index.md",
 "title": "Mixed Media Gallery Blocks <= 3.4.4 - Authenticated (Author+) Missing Authorization to Media Folder Modification and Deletion",
 "description": "The SimpLy Gallery plugin for WordPress is vulnerable to unauthorized modification of data in versions 3.4.0 up to, and including, 3.4.4 due to missing object-level ownership and capability checks on media folders. The folder update and delete REST handlers (pgc-sgb/v1/media-folders), the folder membership assignment handler and the folder term meta auth callbacks only checked for the upload_files capability, and the folder taxonomy mapped its edit and delete term capabilities to upload_files as well. This makes it possible for authenticated attackers, with Author-level access and above, to rename, recolor, reorder or delete media folders created by other users and to change which media those folders contain. Deleting a folder also removes it from other users' attachments.",
 "plugin": {
  "slug": "simply-gallery-block",
  "name": "Mixed Media Gallery Blocks",
  "full_name": "SimpLy Gallery",
  "wordpress_org": "https://wordpress.org/plugins/simply-gallery-block/",
  "advisories_url": "https://wpsec.com/vuln/plugin/simply-gallery-block/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/simply-gallery-block"
 },
 "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": "3.4.0",
    "from_inclusive": true,
    "to": "3.4.5",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 3.4.0 before 3.4.5"
  ]
 },
 "introduced_in": "3.4.0",
 "fixed_in": "3.4.5",
 "remediation": "Update to 3.4.5 or later.",
 "fix_released": "2026-10-12T21:34:30+00:00",
 "published": "2026-10-13T21:45:20+00:00",
 "updated": "2026-10-13T12:12:43.144448+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0858/",
  "https://plugins.svn.wordpress.org/simply-gallery-block/tags/3.4.5/",
  "https://wordpress.org/plugins/simply-gallery-block/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/simply-gallery-block",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-13"
 }
}