{
 "id": "WPSEC-2026-0827",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0827/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0827/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0827/index.md",
 "title": "MailMunch – Grow your Email List <= 3.1.2 - Authenticated (Subscriber+) Missing Authorization to Account Linking and Widget/Email Management via AJAX Actions",
 "description": "The MailMunch – Grow your Email List plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the sign_up, sign_in, delete_widget, change_email_status and delete_email AJAX actions in all versions up to, and including, 3.1.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to point the site's MailMunch site ID at an attacker-controlled MailMunch account, which changes the forms loaded on the site's front end, and to delete widgets, delete emails or change email status on the site's linked MailMunch account.",
 "plugin": {
  "slug": "mailmunch",
  "name": "MailMunch – Grow your Email List",
  "full_name": "MailMunch – Grow your Email List",
  "wordpress_org": "https://wordpress.org/plugins/mailmunch/",
  "advisories_url": "https://wpsec.com/vuln/plugin/mailmunch/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/mailmunch"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "3.2.2",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 3.2.2"
  ]
 },
 "introduced_in": null,
 "fixed_in": "3.2.2",
 "remediation": "Update to 3.2.2 or later.",
 "fix_released": "2026-10-08T07:27:17+00:00",
 "published": "2026-10-13T12:45:11+00:00",
 "updated": "2026-10-13T12:13:27.268853+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0827/",
  "https://plugins.svn.wordpress.org/mailmunch/tags/3.2.2/",
  "https://wordpress.org/plugins/mailmunch/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/mailmunch",
 "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": "2026-10-13"
 }
}