{“lastseen”:””,”description”:”The Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \\u0026 Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the ‘submission_id’ parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to \\”failed\\”).”,”published”:”2026-04-16T13:27:09.207Z”,”modified”:”2026-04-16T14:12:35.951Z”,”type”:”cve”,”title”:”Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \\u0026 Conversational Form Builder \\u003c= 6.1.21 – Insecure Direct Object Reference in Stripe SCA Confirmation to Unauthenticated Payment Status Modification”,”source”:”Wordfence”,”references”:”https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/id\/154fc656-3a33-4783-a941-10bb848244b3?source=cve\\nhttps:\/\/plugins.trac.wordpress.org\/changeset\/3496638\/fluentform”,”id”:”CVE-2026-4160″,”bulletinFamily”:””,”cwe”:[“CWE-639″],”cvelist”:null,”sourceData”:”techjewel Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \\u0026 Conversational Form Builder 6.1.21″,”sourceHref”:””,”cvss”:{“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”,”version”:”3.1″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \\u0026 Conversational Form Builder”,”version”:”6.1.21″,”vendor”:”techjewel”,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”description”:”The Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \\u0026 Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,22,12,21,13,7,11,5],"class_list":["post-47470","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-53","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n