CVE-2026-35198

{"id": "CVE-2026-35198", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35198", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-20T19:01:46.436306Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "heyform", "product": "heyform", "versions": [{"status": "affected", "version": "< 3.0.0-rc.7"}]}]}], "published": "2026-07-20T16:16:58.440", "references": [{"url": "https://github.com/heyform/heyform/commit/cc97d27a57ae400fec23abf5dcf6f9533c3b5db3", "source": "security-advisories@github.com"}, {"url": "https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx", "source": "security-advisories@github.com"}, {"url": "https://vokecyber.com/research/cve-2026-35198-heyform-stored-xss", "source": "security-advisories@github.com"}, {"url": "https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-08-21T20:16:34.723", "sourceIdentifier": "security-advisories@github.com"}