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CVE-2026-102615 HeyForm: Uploaded HTML files are served as text/html on the app origin with no CSP — stored XSS

🗓️ 05 Nov 2026 15:32:30Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 14 Views

Stored XSS in HeyForm via /api/upload serving HTML files as text/html without CSP.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-102615
5 Nov 202615:42
–circl
cve
CVE
CVE-2026-102615
5 Nov 202615:32
–cve
euvd
EUVD
EUVD-2026-117549
5 Nov 202615:32
–euvd
nvd
NVD
CVE-2026-102615
5 Nov 202616:17
–nvd
ptsecurity
Positive Technologies
PT-2026-137528
5 Nov 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-102615: heyform: HeyForm is an open-source form builder
5 Nov 202600:00
–rapid7
[
  {
    "vendor": "heyform",
    "product": "heyform",
    "versions": [
      {
        "version": "< 3.0.1",
        "status": "affected"
      }
    ]
  }
]

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