{
 "id": "WPSEC-2026-2134",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2134/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2134/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2134/index.md",
 "title": "Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.5.4 - Authenticated (Author+) Missing Authorization to Gallery Image Metadata Modification",
 "description": "The NextGEN Gallery plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 4.5.4. This is due to a missing capability and ownership check in the NextGEN media upload tab's save handler, which only verified a nonce printed for any user with the upload_files capability. This makes it possible for authenticated attackers, with Author-level access and above, to overwrite the slug, alt text and description of any NextGEN Gallery image on the site, including images in other users' galleries.",
 "plugin": {
  "slug": "nextgen-gallery",
  "name": "Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery",
  "full_name": "Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery",
  "wordpress_org": "https://wordpress.org/plugins/nextgen-gallery/",
  "advisories_url": "https://wpsec.com/vuln/plugin/nextgen-gallery/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/nextgen-gallery"
 },
 "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": "4.5.5",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 4.5.5"
  ]
 },
 "introduced_in": null,
 "fixed_in": "4.5.5",
 "remediation": "Update to 4.5.5 or later.",
 "fix_released": "2026-10-29T19:39:42+00:00",
 "published": "2026-10-30T19:41:51+00:00",
 "updated": "2026-10-30T09:24:02.350324+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2134/",
  "https://plugins.svn.wordpress.org/nextgen-gallery/tags/4.5.5/",
  "https://wordpress.org/plugins/nextgen-gallery/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/nextgen-gallery",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-30"
 }
}