# heyform.

Every CVE that names heyform among its affected products, newest first. Vendors and products are as the CNA wrote them.

## Records, newest first

- [HeyForm: Uploaded HTML files are served as text/html on the app origin with no CSP — stored XSS](https://agentprime.io/advisories/CVE-2026-102615.md)
  `CVE-2026-102615` · CVE record: heyform heyform · CVSS 7.6 High · Not analysed yet · Published 5 Nov 2026 · Tags: Cross-site scripting (XSS)
- [HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials](https://agentprime.io/advisories/CVE-2026-82291.md)
  `CVE-2026-82291` · CVE record: heyform heyform · CVSS 8.1 High · Not analysed yet · Published 28 Aug 2026 · Tags: CWE-942
- [HeyForm has unauthenticated /api/upload endpoint that accepts arbitrary files with no auth/session/form context](https://agentprime.io/advisories/CVE-2026-63429.md)
  `CVE-2026-63429` · CVE record: heyform heyform · CVSS 8.6 High · Not analysed yet · Published 20 Jul 2026 · Tags: Authentication bypass, Unrestricted file upload
- [HeyForm: completeSubmission persists submitter-supplied hidden fields verbatim without validating against the form's declared hidden-field set](https://agentprime.io/advisories/CVE-2026-63428.md)
  `CVE-2026-63428` · CVE record: heyform heyform · CVSS 5.8 Medium · Not analysed yet · Published 20 Jul 2026 · Tags: Broken access control, CWE-20
- [HeyForm vulnerable to stored XSS via form field titles](https://agentprime.io/advisories/CVE-2026-35198.md)
  `CVE-2026-35198` · CVE record: heyform heyform · CVSS 9.0 Critical · Critical (CVSS 9+) · Not analysed yet · Published 20 Jul 2026 · Tags: Cross-site scripting (XSS)
- [HeyForm Vulnerable to Stored XSS via Unauthenticated SVG File Upload](https://agentprime.io/advisories/CVE-2026-45797.md)
  `CVE-2026-45797` · CVE record: heyform heyform · CVSS 6.4 Medium · Not analysed yet · Published 20 Jul 2026 · Tags: Cross-site scripting (XSS), Unrestricted file upload

## Filters and formats

Filters are query parameters on this URL: `q` (words, as in a web search engine: `"a phrase"`, `OR`, `-word`; an id; a package or product name), `severity` (low, medium, high or critical), `critical=1`, `kev=1`, `ecosystem` (npm, pypi, packagist, go, maven, rubygems, crates, nuget, hex), `kind=package`, `assigner` (a CNA’s short name), `min_score` and `state`. Each record’s title links to its Markdown page.

- The same list as JSON: <https://api.agentprime.io/v1/advisories?technology=heyform>
- Every list: <https://agentprime.io/advisories.md>, critical: <https://agentprime.io/advisories/critical.md>; by weakness: <https://agentprime.io/advisories/tag/sql-injection.md> and the other tags in <https://agentprime.io/llms.txt>; by technology: `/advisories/technology/<slug>.md` (`fortinet-fortimail`)

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The web page: <https://agentprime.io/advisories/technology/heyform/>. Everything for agents: <https://agentprime.io/llms.txt>.