{"schemaVersion":3,"id":"CVE-2026-16734","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Stripe Payment Forms by WP Full Pay  WordPress plugin before 8.5.2 does not verify that the caller owns the Stripe payment intent referenced by two unauthenticated payment-form AJAX actions, allowing an unauthenticated visitor — using a nonce that is embedded in every public page containing a payment form — to change the amount of a payment intent that the Stripe Payment Forms by WP Full Pay  WordPress plugin before 8.5.2 then updates server-side through the Stripe API with the store's secret key. An ownership check added in 8.5.0 was applied to only one payment-intent handler, leaving the pricing-recalculation and payment-intent-update actions unprotected against amount manipulation.","dates":{"published":"2026-08-06T06:00:10.619Z","modified":"2026-08-06T14:33:15.811Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00346,"percentile":0.26772,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.15,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00196},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00346,"percentile":0.26772}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00346,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00346,"percentile":0.26772}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_BE453D6393E8421F","name":"Exploit Reference (wpscan.com)","source":"reference","url":"https://wpscan.com/vulnerability/5fcb5b11-3ebd-4821-aa6f-c6be70bac395/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-862","name":"Missing Authorization","description":"The product does not perform an authorization check when an actor attempts to access a resource or perform an action.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/862.html"}],"affected":[{"vendor":"unknown","product":"stripe payment forms by wp full pay","name":"Stripe Payment Forms by WP Full Pay","label":"stripe payment forms by wp full pay","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 8.5.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 8.5.2","eol":null,"hubHref":"/vendor/unknown/stripe_payment_forms_by_wp_full_pay"},{"vendor":"wordpress","product":"wp-full-stripe-free","name":"Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions","label":"wp-full-stripe-free","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 8.5.1 (fixed in 8.5.2)","noFixRecorded":false,"fixedIn":"8.5.2"}],"versionsText":"≤ 8.5.1 (fixed in 8.5.2)","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://wpscan.com/vulnerability/5fcb5b11-3ebd-4821-aa6f-c6be70bac395/","label":"wpscan.com/vulnerability/5fcb5b11-3ebd-4821-aa6f-c6be70bac395/","hostname":"wpscan.com","tags":["Exploit","VDB Entry","Technical Description"]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/0b57a51f-7989-4e99-a339-70f831405696","label":"www.wordfence.com/threat-intel/vulnerabilities/id/0b57a51f-7989-4e99-a339-70f831405696","hostname":"www.wordfence.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-08-06T06:00:10.619Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-06T14:33:15.811Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":40,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T14:48:02.652Z","stale":false,"partial":false}}