{"schema_version":1,"title":"HeyForm vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in HeyForm: 0 in the last 7 days and 5 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-82291, was published on 28 August 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/heyform","json_url":"https://junglewise.ai/threats/vendors/heyform.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/vendors/heyform","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":2,"all_time":5,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":5,"last_365_days":5},"latest":[{"cve":"CVE-2026-82291","cvss":8.1,"epss":0.0055,"slug":"cve-2026-82291-heyform-cors-misconfiguration-with-credential-handling","title":"HeyForm CORS misconfiguration with credential handling","severity":"high","exploited":false,"published_at":"2026-08-28T20:20:20.82+00:00","url":"https://junglewise.ai/threats/cve-2026-82291-heyform-cors-misconfiguration-with-credential-handling"},{"cve":"CVE-2026-63429","cvss":8.6,"slug":"cve-2026-63429-heyform-missing-authentication-in-file-upload-api","title":"HeyForm missing authentication in file upload API","severity":"high","exploited":false,"published_at":"2026-07-20T16:17:06.81+00:00","url":"https://junglewise.ai/threats/cve-2026-63429-heyform-missing-authentication-in-file-upload-api"},{"cve":"CVE-2026-63428","cvss":5.8,"slug":"cve-2026-63428-heyform-improper-input-validation-in-hiddenfields-submission","title":"HeyForm improper input validation in hiddenFields submission","severity":"medium","exploited":false,"published_at":"2026-07-20T16:17:06.68+00:00","url":"https://junglewise.ai/threats/cve-2026-63428-heyform-improper-input-validation-in-hiddenfields-submission"},{"cve":"CVE-2026-45797","cvss":6.4,"slug":"cve-2026-45797-heyform-unauthenticated-stored-xss-via-svg-file-upload","title":"HeyForm unauthenticated stored XSS via SVG file upload","severity":"info","exploited":false,"published_at":"2026-07-20T16:17:00.743+00:00","url":"https://junglewise.ai/threats/cve-2026-45797-heyform-unauthenticated-stored-xss-via-svg-file-upload"},{"cve":"CVE-2026-35198","cvss":9,"slug":"cve-2026-35198-heyform-stored-xss-in-form-builder-field-titles","title":"HeyForm stored XSS in form builder field titles","severity":"critical","exploited":false,"published_at":"2026-07-20T16:16:58.44+00:00","url":"https://junglewise.ai/threats/cve-2026-35198-heyform-stored-xss-in-form-builder-field-titles"}],"vendor":{"hub":true,"name":"HeyForm","slug":"heyform","homepage":"https://heyform.net/","description":"HeyForm is an open-source software provider specializing in conversational form building tools.","url":"https://junglewise.ai/threats/vendors/heyform"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":1,"exploited":0,"vulnerabilities":4},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2026-35198","cvss":9,"slug":"cve-2026-35198-heyform-stored-xss-in-form-builder-field-titles","title":"HeyForm stored XSS in form builder field titles","severity":"critical","exploited":false,"published_at":"2026-07-20T16:16:58.44+00:00","url":"https://junglewise.ai/threats/cve-2026-35198-heyform-stored-xss-in-form-builder-field-titles"},{"cve":"CVE-2026-63429","cvss":8.6,"slug":"cve-2026-63429-heyform-missing-authentication-in-file-upload-api","title":"HeyForm missing authentication in file upload API","severity":"high","exploited":false,"published_at":"2026-07-20T16:17:06.81+00:00","url":"https://junglewise.ai/threats/cve-2026-63429-heyform-missing-authentication-in-file-upload-api"},{"cve":"CVE-2026-82291","cvss":8.1,"epss":0.0055,"slug":"cve-2026-82291-heyform-cors-misconfiguration-with-credential-handling","title":"HeyForm CORS misconfiguration with credential handling","severity":"high","exploited":false,"published_at":"2026-08-28T20:20:20.82+00:00","url":"https://junglewise.ai/threats/cve-2026-82291-heyform-cors-misconfiguration-with-credential-handling"},{"cve":"CVE-2026-63428","cvss":5.8,"slug":"cve-2026-63428-heyform-improper-input-validation-in-hiddenfields-submission","title":"HeyForm improper input validation in hiddenFields submission","severity":"medium","exploited":false,"published_at":"2026-07-20T16:17:06.68+00:00","url":"https://junglewise.ai/threats/cve-2026-63428-heyform-improper-input-validation-in-hiddenfields-submission"},{"cve":"CVE-2026-45797","cvss":6.4,"slug":"cve-2026-45797-heyform-unauthenticated-stored-xss-via-svg-file-upload","title":"HeyForm unauthenticated stored XSS via SVG file upload","severity":"info","exploited":false,"published_at":"2026-07-20T16:17:00.743+00:00","url":"https://junglewise.ai/threats/cve-2026-45797-heyform-unauthenticated-stored-xss-via-svg-file-upload"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"HeyForm","slug":"heyform","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/heyform"}]}