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CVE-2021-27653

Estado: ModificadaMedia (4.9)—

Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0 - 8.5.x could lead to unintended data exposure.

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)

Pega — Infinity

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-27653",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@pega.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.6,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.7
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "security@pega.com",
      "affectedData": [
        {
          "vendor": "Pega Systems",
          "product": "Pega Infinity",
          "versions": [
            {
              "status": "affected",
              "version": ">=7.4.0, <8.5.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-01T19:15:14.077",
  "references": [
    {
      "url": "https://collaborate.pega.com/discussion/pega-security-advisory-%E2%80%93-b21",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@pega.com"
    },
    {
      "url": "https://robertwillishacking.com/census-vulnerability-exposes-10k-oauth-tokens-thousands-of-user-records/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "security@pega.com"
    },
    {
      "url": "https://collaborate.pega.com/discussion/pega-security-advisory-%E2%80%93-b21",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://robertwillishacking.com/census-vulnerability-exposes-10k-oauth-tokens-thousands-of-user-records/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@pega.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0 - 8.5.x could lead to unintended data exposure."
    },
    {
      "lang": "es",
      "value": "La configuración incorrecta del portal Pega Chat Access Group en la plataforma Pega versiones 7.4.0 - 8.5.x podría conllevar a una exposición de datos no intencionada."
    }
  ],
  "lastModified": "2026-06-17T03:45:18.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pega:infinity:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "131DFBF1-FD9D-4002-A1A8-E76CE5D1529D",
              "versionEndExcluding": "8.5.3",
              "versionStartIncluding": "7.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@pega.com"
}