{
 "id": "WPSEC-2026-2252",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2252/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2252/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2252/index.md",
 "title": "ACF Frontend Admin by DynamiApps <= 3.30.1 - Unauthenticated Limited File Upload via File Upload Field",
 "description": "The ACF Frontend Admin by DynamiApps plugin for WordPress is vulnerable to limited file uploads via the 'acf/fields/upload_file/add_attachment' AJAX action in all versions up to, and including, 3.30.1. This is due to the file type check in validate_attachment() only running when the uploaded file name has an extension, so a file without an extension skips the allowed type check. The upload folder was also served without an X-Content-Type-Options: nosniff header. This makes it possible for unauthenticated attackers to upload files without an extension to the public fea-submissions uploads folder when a form with a file field is shown on the site. On servers that send such files without a content type, browsers may render them as HTML, which can lead to stored cross-site scripting.",
 "plugin": {
  "slug": "acf-frontend-form-element",
  "name": "ACF Frontend Admin by DynamiApps",
  "full_name": "ACF Frontend Admin by DynamiApps",
  "wordpress_org": "https://wordpress.org/plugins/acf-frontend-form-element/",
  "advisories_url": "https://wpsec.com/vuln/plugin/acf-frontend-form-element/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/acf-frontend-form-element"
 },
 "type": "UPLOAD",
 "cwe": [
  "CWE-434"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 7.2,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
  "severity": "High"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "3.30.2",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 3.30.2"
  ]
 },
 "introduced_in": null,
 "fixed_in": "3.30.2",
 "remediation": "Update to 3.30.2 or later.",
 "fix_released": "2026-11-01T12:31:15+00:00",
 "published": "2026-11-03T14:48:33+00:00",
 "updated": "2026-11-03T13:21:38.988421+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2252/",
  "https://plugins.svn.wordpress.org/acf-frontend-form-element/tags/3.30.2/",
  "https://wordpress.org/plugins/acf-frontend-form-element/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/acf-frontend-form-element",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-11-03"
 }
}