CVE-2020-13340
Estado: ModificadaAlta (8.7)—
Se ha detectado un problema en GitLab afectando a todas las versiones anteriores a 13.2.10, 13.3.7 y 13.4.2: Una vulnerabilidad de tipo XSS almacenado en CI Job Log
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 67%
- Percentil entre todas las CVEs puntuadas: 99
- Fecha de la puntuación: 7/10/2026
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
- CWE-79
Referencias
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13340.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/233473
- https://hackerone.com/reports/950190
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13340.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/233473
- https://hackerone.com/reports/950190
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-13340",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "cve@gitlab.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.3
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.3
}
]
},
"affected": [
{
"source": "cve@gitlab.com",
"affectedData": [
{
"vendor": "GitLab",
"product": "GitLab",
"versions": [
{
"status": "affected",
"version": ">=12.4, <13.2.10"
},
{
"status": "affected",
"version": ">=13.3, <13.3.7"
},
{
"status": "affected",
"version": ">=13.4, <13.4.2"
}
]
}
]
}
],
"published": "2020-10-08T14:15:11.780",
"references": [
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13340.json",
"tags": [
"Third Party Advisory"
],
"source": "cve@gitlab.com"
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/233473",
"tags": [
"Broken Link"
],
"source": "cve@gitlab.com"
},
{
"url": "https://hackerone.com/reports/950190",
"tags": [
"Permissions Required",
"Third Party Advisory"
],
"source": "cve@gitlab.com"
},
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13340.json",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/233473",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://hackerone.com/reports/950190",
"tags": [
"Permissions Required",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue has been discovered in GitLab affecting all versions prior to 13.2.10, 13.3.7 and 13.4.2: Stored XSS in CI Job Log"
},
{
"lang": "es",
"value": "Se ha detectado un problema en GitLab afectando a todas las versiones anteriores a 13.2.10, 13.3.7 y 13.4.2: Una vulnerabilidad de tipo XSS almacenado en CI Job Log"
}
],
"lastModified": "2026-06-17T02:52:59.270",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"vulnerable": true,
"matchCriteriaId": "88546E39-836D-4F9B-9809-AD7F0D6AF38C",
"versionEndExcluding": "13.2.10"
},
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2E09C6B1-AA17-4FAC-91DC-C71F829A8AEF",
"versionEndExcluding": "13.2.10"
},
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7FFA9C80-2AE2-4B82-9CFC-3324B0865BE0",
"versionEndExcluding": "13.3.7",
"versionStartIncluding": "13.3.0"
},
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D21B677B-F35D-4448-AE7A-6EE4FE757DB7",
"versionEndExcluding": "13.3.7",
"versionStartIncluding": "13.3.0"
},
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BC792133-E5C7-44D0-8553-32BC175077A8",
"versionEndExcluding": "13.4.2",
"versionStartIncluding": "13.4.0"
},
{
"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E592579D-2152-4A79-8AEC-21D2119FB7E7",
"versionEndExcluding": "13.4.2",
"versionStartIncluding": "13.4.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@gitlab.com"
}