heyform vulnerabilities
CVEs whose affected-version data names the heyform package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
2 CVEsRSS
CVE-2026-102615High· 7.6HeyForm: Uploaded HTML files are served as text/html on the app origin with no CSP — stored XSS
HeyForm is an open-source form builder. Prior to 3.0.1, /api/upload accepts a file according to the client-controlled multipart file.mimetype while retaining an HTML filename, and static/upload serves the resulting file as text/html with…
▾ Twilightheyform · heyformEPSS 0.25%via CVEORG
CVE-2026-82291High· 8.1PoCHeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication
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 visit…
▾ Midnightheyform · heyformEPSS 0.55%via NVD