CVE-2020-13121
Estado: ModificadaMedia (6.1)—💥 Exploit
Submitty through 20.04.01 has an open redirect via authentication/login?old= during an invalid login attempt.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.93%
- Percentil entre todas las CVEs puntuadas: 87
- 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).
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Plantilla de Nuclei (detección automática y masiva) · Submitty <= 20.04.01 - Open Redirect
Tecnologías afectadas (1)
CWE
- CWE-601
Referencias
JSON original (NVD)
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{
"id": "CVE-2020-13121",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5.8,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.1,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2020-05-16T20:15:12.000",
"references": [
{
"url": "https://github.com/Submitty/Submitty/issues/5265",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/Submitty/Submitty/issues/5265",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-601"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Submitty through 20.04.01 has an open redirect via authentication/login?old= during an invalid login attempt."
},
{
"lang": "es",
"value": "Submitty versiones hasta 20.04.01, presenta un redireccionamiento abierto por medio de authentication/login?old= durante un intento de inicio de sesión no válido."
}
],
"lastModified": "2026-06-17T02:52:39.383",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:rcos:submitty:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8AA5D74C-AE38-41CE-B0C1-EFF897221AF6",
"versionEndIncluding": "20.04.01"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}