{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16621", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2026-07-22T14:51:38.254Z", "datePublished": "2026-08-12T11:23:59.378Z", "dateUpdated": "2026-08-12T12:14:24.803Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-08-12T11:23:59.378Z"}, "title": "Payment Gateway for PayPal on WooCommerce < 9.2.1 - Unauthenticated Payment Bypass via PayPal Advanced Return Handler", "problemTypes": [{"descriptions": [{"description": "CWE-345 Insufficient Verification of Data Authenticity", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "Payment Gateway for PayPal on WooCommerce", "versions": [{"status": "affected", "versionType": "semver", "version": "0", "lessThan": "9.2.1"}], "defaultStatus": "unaffected", "collectionURL": "https://wordpress.org/plugins"}], "descriptions": [{"lang": "en", "value": "The Payment Gateway for PayPal on WooCommerce WordPress plugin before 9.2.1 does not verify that payment actually succeeded before completing an order in its PayPal return handler: it reads attacker-controlled parameters, performs no amount comparison and no order-ownership check, and completes the order even when the server-side gateway verification fails, allowing an unauthenticated attacker to mark arbitrary orders as paid without paying."}], "references": [{"url": "https://wpscan.com/vulnerability/76c4cff2-1166-45fe-9517-5eda2d24c35d/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Muni Nitish Kumar Yaddala", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-12T12:14:12.062302Z", "id": "CVE-2026-16621", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T12:14:24.803Z"}}]}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "product": "Payment Gateway for PayPal on WooCommerce", "vendor": "Unknown", "versions": [{"lessThan": "9.2.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "contact@wpscan.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Payment Gateway for PayPal on WooCommerce WordPress plugin before 9.2.1 does not verify that payment actually succeeded before completing an order in its PayPal return handler: it reads attacker-controlled parameters, performs no amount comparison and no order-ownership check, and completes the order even when the server-side gateway verification fails, allowing an unauthenticated attacker to mark arbitrary orders as paid without paying."}], "id": "CVE-2026-16621", "lastModified": "2026-08-12T12:17:46.920", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "contact@wpscan.com", "type": "Secondary"}]}, "published": "2026-08-12T12:17:46.920", "references": [{"source": "contact@wpscan.com", "url": "https://wpscan.com/vulnerability/76c4cff2-1166-45fe-9517-5eda2d24c35d/"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Received"}

{}

{}