{"schema":"threatline.record/2","record":{"id":"CVE-2026-18467","aliases":[],"summary":"Paytium: Mollie payment forms & donations <= 5.0.3 - Unauthenticated Privilege Escalation via 'pt_form_field[pt-user-role]' Parameter","details":"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 — pt_cf_checkout_meta(), registered on the pt_meta_values hook after the signed builder — 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.","categories":["Unclassified"],"product":"Paytium: Mollie payment forms & donations","vendor":"paytiumsupport","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-18467","source_modified_at":"2026-09-24T15:04:13.676Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Paytium: Mollie payment forms & donations","vendor":"paytiumsupport","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.0.3","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00392,"percentile":0.32188,"score_date":"2026-10-23"},"published_at":"2026-09-24T01:27:57.343Z","modified_at":"2026-09-24T15:04:13.676Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-18467","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-24T15:04:13.676Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-18467","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/caa1a42a-6bb2-42c8-aae7-fb1c895573a8?source=cve"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/user-data-functions.php#L214"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L1103"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L696"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php#L21"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/payment-functions.php#L113"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/changeset/3678569/paytium"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-09-24T14:38:06.322433Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-24T15:04:13.676Z","content_hash":"739e4df08158cf60a549a7a6011c9c7ad1cd5d0072b6313c4d2cfa3b489b28f1"}}