User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-3601",
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "dateUpdated": "2026-05-05T08:27:36.202Z",
    "dateReserved": "2026-03-05T14:40:38.401Z",
    "datePublished": "2026-05-05T08:27:36.202Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence",
        "dateUpdated": "2026-05-05T08:27:36.202Z"
      },
      "title": "User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification",
      "descriptions": [
        {
          "lang": "en",
          "value": "The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `embed_form_action()` function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit."
        }
      ],
      "affected": [
        {
          "vendor": "wpeverest",
          "product": "User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "5.1.4"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-862 Missing Authorization",
              "cweId": "CWE-862",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c8798fb2-4cab-4960-9e32-fd74bb4a5091?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/class-ur-ajax.php#L1003"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/class-ur-ajax.php#L1003"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/admin/class-ur-admin-assets.php#L370"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/admin/class-ur-admin-assets.php#L370"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3485702/user-registration/trunk/includes/class-ur-ajax.php?contextall=1"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM"
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-03-05T14:55:53.000Z",
          "lang": "en",
          "value": "Vendor Notified"
        },
        {
          "time": "2026-05-04T19:57:08.000Z",
          "lang": "en",
          "value": "Disclosed"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Hunter Jensen",
          "type": "finder"
        }
      ]
    }
  }
}