{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-120070",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-10-30T19:33:19.204Z",
        "datePublished": "2026-10-31T07:46:53.190Z",
        "dateUpdated": "2026-10-31T07:46:53.190Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-10-31T07:46:53.190Z"
            },
            "affected": [
                {
                    "vendor": "wedevs",
                    "product": "User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "4.3.13",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the `post_content` parameter of the `submit_post()` function. The vulnerability exists because the protected-shortcode blocklist guard inspects the `sanitize_textarea_field()` copy of the submitted `post_content`, while the copy actually persisted to the database is processed through `wp_kses()`, whose `wp_kses_no_null()` step strips C0 control bytes — allowing an attacker to inject a single `\\x01` byte inside the `[wpuf-registration]` tag name to defeat the `strpos()` blocklist check while the clean, functional shortcode is stored verbatim; `strip_shortcodes()` does not neutralize the stored shortcode either, because the Frontend container that registers it via `add_shortcode()` is only instantiated when `is_admin()` is false, and `admin-ajax` requests have `is_admin() === true`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a `[wpuf-registration role=\"editor\"]` shortcode into a published post, causing a live Editor-role registration form to be rendered publicly on the frontend that any visitor — or the attacker themselves — can submit to mint a WordPress Editor account with an immediately active privileged session when the default `autologin_after_registration` setting is enabled."
                }
            ],
            "title": "User Frontend <= 4.3.13 - Authenticated (Subscriber+) Privilege Escalation via post_content Parameter",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f84b6767-f254-45c9-8e78-36d4beac2a98?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Ajax/Frontend_Form_Ajax.php#L253"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Ajax/Frontend_Form_Ajax.php#L132"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Frontend/Registration.php#L116"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.13/includes/Frontend/Registration.php#L362"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset/3770255/wp-user-frontend/trunk/includes/Ajax/Frontend_Form_Ajax.php"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-269 Improper Privilege Management",
                            "cweId": "CWE-269",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Kuba"
                }
            ],
            "timeline": [
                {
                    "time": "2026-10-09T18:22:03.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-10-30T19:33:59.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        }
    }
}