{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18467", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-07-31T08:28:18.576Z", "datePublished": "2026-09-24T01:27:57.343Z", "dateUpdated": "2026-09-24T01:27:57.343Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-09-24T01:27:57.343Z"}, "affected": [{"vendor": "paytiumsupport", "product": "Paytium: Mollie payment forms & donations", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "5.0.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Paytium: Mollie payment forms & donations plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.0.3. The 5.0.3 patch introduced a wp_hash()/hash_equals() signature gate on the pt-paytium-user-data field, but left a second filter \u2014 pt_cf_checkout_meta(), registered on the pt_meta_values hook after the signed builder \u2014 that copies every $_POST['pt_form_field'][*] key verbatim into the payment meta array without any signature verification; this allows the pt-user-role value it copies to overwrite the signed path's output, after which paytium_user_data_processing() reads the persisted _pt-user-role post meta and passes it directly as the role argument to wp_insert_user(). This makes it possible for unauthenticated attackers to register a new WordPress account with the administrator role and fully take over the site. Exploitation requires submitting a payment through a publicly-exposed [paytium] shortcode form and completing the resulting payment flow, after which the attacker can seize the new administrator account via the standard lost-password flow on their supplied email address."}], "title": "Paytium: Mollie payment forms & donations <= 5.0.3 - Unauthenticated Privilege Escalation via 'pt_form_field[pt-user-role]' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/caa1a42a-6bb2-42c8-aae7-fb1c895573a8?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/user-data-functions.php#L214"}, {"url": "https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L1103"}, {"url": "https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L696"}, {"url": "https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L21"}, {"url": "https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/payment-functions.php#L113"}, {"url": "https://plugins.trac.wordpress.org/changeset/3678569/paytium"}], "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:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}}], "credits": [{"lang": "en", "type": "finder", "value": "Aydan Arabadzha"}], "timeline": [{"time": "2026-09-23T13:14:06.000Z", "lang": "en", "value": "Disclosed"}]}}}

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