CVE-2026-39964

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{"affected": [{"affectedData": [{"product": "typebot.io", "vendor": "baptisteArno", "versions": [{"status": "affected", "version": "< 3.16.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TypeBot is a chatbot builder tool. In versions prior to 3.16.0, the Typebot viewer (packages/embeds/js) renders anchor tags from rich text bubble content without filtering the javascript: URI scheme. A bot author can set a link URL to javascript:PAYLOAD, which executes in the visitor's browser context when clicked. Since the viewer is typically embedded in a third-party site, the attacker's JavaScript runs in the host page's origin and can exfiltrate cookies and session tokens. This can result in any authenticated Typebot user (including those on the free tier) being able to create a bot with this payload. Shared bots are publicly accessible \u2014 no victim authentication is required. This issue has been resolved in version 3.16.0."}, {"lang": "es", "value": "TypeBot es una herramienta de creaci\u00f3n de chatbots. En versiones anteriores a la 3.16.0, el visor de Typebot (packages/embeds/js) renderiza etiquetas de anclaje del contenido de burbujas de texto enriquecido sin filtrar el esquema URI javascript:. Un autor de bot puede establecer una URL de enlace a javascript:PAYLOAD, que se ejecuta en el contexto del navegador del visitante al hacer clic. Dado que el visor suele estar incrustado en un sitio de terceros, el JavaScript del atacante se ejecuta en el origen de la p\u00e1gina anfitriona y puede exfiltrar cookies y tokens de sesi\u00f3n. Esto puede resultar en que cualquier usuario autenticado de Typebot (incluidos los del nivel gratuito) pueda crear un bot con esta carga \u00fatil. Los bots compartidos son de acceso p\u00fablico - no se requiere autenticaci\u00f3n de la v\u00edctima. Este problema ha sido resuelto en la versi\u00f3n 3.16.0."}], "id": "CVE-2026-39964", "lastModified": "2026-07-23T16:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-39964", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-23T02:33:03.624430Z", "version": "2.0.3"}}]}, "published": "2026-05-22T18:16:21.690", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/baptisteArno/typebot.io/commit/2c3fc7267a5e1529ba4b1a2ab4f1edb3e3b8990b"}, {"source": "security-advisories@github.com", "url": "https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-hqmv-v56g-4m47"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-hqmv-v56g-4m47"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.16.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "typebot.io", "source": "cna", "vendor": "baptisteArno"}, "product": "typebot.io", "vendor": "baptistearno"}], "created": "2026-05-22T19:30:44.282799+00:00", "updated": "2026-05-25T11:34:02.131417+00:00", "vendors": ["baptistearno", "baptistearno$PRODUCT$typebot.io"]}