CVE-2020-29041
Estado: ModificadaMedia (5.3)—
A misconfiguration in Web-Sesame 2020.1.1.3375 allows an unauthenticated attacker to download the source code of the application, facilitating its comprehension (code review). Specifically, JavaScript source maps were inadvertently included in the production Webpack configuration. These maps contain sources used to generate the bundle, configuration settings (e.g., API keys), and developers' comments.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Puntuación base: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.37%
- Percentil entre todas las CVEs puntuadas: 71
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://blog.bssi.fr/source-code-vulnerability-disclosure-discovered-in-the-web-sesame-application-of-til-technologies/
- https://blog.bssi.fr/vulnerabilite-de-divulgation-de-code-source-identifiee-au-sein-de-lapplication-web-sesame-de-til-technologies/
- https://blog.bssi.fr/source-code-vulnerability-disclosure-discovered-in-the-web-sesame-application-of-til-technologies/
- https://blog.bssi.fr/vulnerabilite-de-divulgation-de-code-source-identifiee-au-sein-de-lapplication-web-sesame-de-til-technologies/
JSON original (NVD)
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{
"id": "CVE-2020-29041",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-01-06T21:15:14.253",
"references": [
{
"url": "https://blog.bssi.fr/source-code-vulnerability-disclosure-discovered-in-the-web-sesame-application-of-til-technologies/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://blog.bssi.fr/vulnerabilite-de-divulgation-de-code-source-identifiee-au-sein-de-lapplication-web-sesame-de-til-technologies/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://blog.bssi.fr/source-code-vulnerability-disclosure-discovered-in-the-web-sesame-application-of-til-technologies/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://blog.bssi.fr/vulnerabilite-de-divulgation-de-code-source-identifiee-au-sein-de-lapplication-web-sesame-de-til-technologies/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A misconfiguration in Web-Sesame 2020.1.1.3375 allows an unauthenticated attacker to download the source code of the application, facilitating its comprehension (code review). Specifically, JavaScript source maps were inadvertently included in the production Webpack configuration. These maps contain sources used to generate the bundle, configuration settings (e.g., API keys), and developers' comments."
},
{
"lang": "es",
"value": "Una configuración inapropiada en Web-Sesame versión 2020.1.1.3375, permite a un atacante no autenticado descargar el código fuente de la aplicación, facilitando su comprensión (revisión de código). Específicamente, los mapas de código fuente de JavaScript fueron incluidos inadvertidamente en la configuración del Webpack de producción. Estos mapas contienen fuentes utilizadas para generar el paquete, ajustes de configuración (por ejemplo, claves de API) y comentarios de los desarrolladores"
}
],
"lastModified": "2026-06-17T03:11:00.950",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sesame-system:web-sesame:2020.1.1.3375:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F0E83B83-43D6-424A-8602-63F56676C1CB"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}