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CVE-2020-1961

Estado: ModificadaCrítica (9.8)—

Vulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6, enabling attackers to inject arbitrary JEXL expressions, leading to Remote Code Execution (RCE) was discovered.

CVSS

Probabilidad de explotación (EPSS)

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)

Apache — Syncope

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-1961",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Apache Syncope",
          "versions": [
            {
              "status": "affected",
              "version": "Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-05-04T13:15:14.033",
  "references": [
    {
      "url": "http://syncope.apache.org/security",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://syncope.apache.org/security",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6, enabling attackers to inject arbitrary JEXL expressions, leading to Remote Code Execution (RCE) was discovered."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Inyección de Plantillas del Lado del Servidor en las plantillas de Correo para Apache Syncope versiones 2.0.X anteriores a  la versión 2.0.15, versiones 2.1.X anteriores a la versión 2.1.6, que permiten a atacantes inyectar expresiones JEXL arbitrarias, conllevando a una Ejecución de Código Remota (RCE)."
    }
  ],
  "lastModified": "2026-06-17T03:02:43.860",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "35845EE4-A8AC-4F33-8317-CEF91BB492E3",
              "versionEndExcluding": "2.0.15",
              "versionStartIncluding": "2.0.0"
            },
            {
              "criteria": "cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31260109-834D-4DCF-AA29-754026EC13A2",
              "versionEndExcluding": "2.1.6",
              "versionStartIncluding": "2.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}