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CVE-2020-27459

Estado: ModificadaMedia (6.1)—

Chronoforeum 2.0.11 allows Stored XSS vulnerabilities when inserting a crafted payload into a post. If any user sees the post, the inserted XSS code is executed.

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)

Chronoengine — Chronoforums

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-27459",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "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": "2020-11-16T15:15:12.923",
  "references": [
    {
      "url": "https://github.com/nugmubs/chronoforums-cve/wiki/Stored-XSS-Vulnerability-in-Chronoforum-v2.0.11-%28Joomla-plugin%29",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/nugmubs/chronoforums-cve/wiki/Stored-XSS-Vulnerability-in-Chronoforum-v2.0.11-%28Joomla-plugin%29",
      "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": "Chronoforeum 2.0.11 allows Stored XSS vulnerabilities when inserting a crafted payload into a post. If any user sees the post, the inserted XSS code is executed."
    },
    {
      "lang": "es",
      "value": "Chronoforeum versión 2.0.11, permite vulnerabilidades de tipo XSS almacenado cuando se inserta una carga útil diseñada en una publicación. Si cualquier usuario visualiza el mensaje, es ejecutado el código XSS insertado"
    }
  ],
  "lastModified": "2026-06-17T03:09:14.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chronoengine:chronoforums:2.0.11:*:*:*:*:joomla:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BD1AE009-1F9C-4367-B9B1-99F5DA2DAB5F"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}