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5 vulnerabilities found for heyform by heyform
CVE-2026-82291 (GCVE-0-2026-82291)
Vulnerability from cvelistv5
Published
2026-08-28 16:19
Modified
2026-08-29 11:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
Summary
HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings.
References
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CVE-2026-63429 (GCVE-0-2026-63429)
Vulnerability from cvelistv5
Published
2026-07-20 15:54
Modified
2026-07-20 17:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `POST /api/upload` has no authentication guard, no global guard, no form-context validation, no `openToken` requirement, and no session cookie check. Any anonymous internet user can upload files (PDF, DOC/DOCX, XLS/XLSX, CSV, TXT, MP4, images, etc., up to 10 MB) and receive a permanent public URL on the HeyForm domain. The endpoint is used by both authenticated form creators and unauthenticated form submitters; because no form-context binding exists, every request to it is anonymously accepted. Version 3.0.0-rc.9 contains a patch for the issue.
References
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|---|---|---|
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CVE-2026-63428 (GCVE-0-2026-63428)
Vulnerability from cvelistv5
Published
2026-07-20 15:50
Modified
2026-07-20 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `completeSubmission` accepts a `hiddenFields: [{id, name, value}]` array from the submitter and stores it verbatim in `submission.hiddenFields`, without validating the supplied `id`/`name` against the form's declared `form.hiddenFields` schema. An anonymous form submitter can therefore inject arbitrary key/value pairs (including XSS payloads, fake authorization metadata, integration-relevant values) into the stored submission. These fields are subsequently forwarded as-is to every webhook integration registered on the form. Version 3.0.0-rc.9 contains a patch for the issue.
References
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|---|---|---|
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CVE-2026-35198 (GCVE-0-2026-35198)
Vulnerability from cvelistv5
Published
2026-07-20 15:47
Modified
2026-08-21 19:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, a stored cross-site scripting (XSS) vulnerability in the form builder allows a low-privileged team member to inject malicious JavaScript that executes when a team owner views the form, leading to complete account takeover through privilege escalation. Version 3.0.0-rc.7 contains a patch for the issue.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2026-45797 (GCVE-0-2026-45797)
Vulnerability from cvelistv5
Published
2026-07-20 15:43
Modified
2026-07-20 19:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, the `/api/upload` endpoint allows unauthenticated file uploads including SVG files. Uploaded SVGs are stored in the static assets directory and served with `Content-Type: image/svg+xml` by Express's serve-static middleware, allowing an attacker to achieve stored cross-site scripting (XSS) on the heyform domain without any authentication. Version 3.0.0-rc.7 contains a patch for the issue.
References
| URL | Tags | |
|---|---|---|
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},
{
"name": "https://github.com/heyform/heyform/commit/144240e5545d10fd9e120d05ccb402a6d7064674",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/heyform/heyform/commit/144240e5545d10fd9e120d05ccb402a6d7064674"
}
],
"source": {
"advisory": "GHSA-m94h-jxvc-hhch",
"discovery": "UNKNOWN"
},
"title": "HeyForm Vulnerable to Stored XSS via Unauthenticated SVG File Upload"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-45797",
"datePublished": "2026-07-20T15:43:13.473Z",
"dateReserved": "2026-05-13T08:19:32.603Z",
"dateUpdated": "2026-07-20T19:07:52.276Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}