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CVE-2026-49384

Estado: AnalizadaMedia (6.1)—

In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

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)

Jetbrains — Pycharm

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-49384",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2026-49384",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-29T19:24:14.744158Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@jetbrains.com",
        "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@jetbrains.com",
      "affectedData": [
        {
          "vendor": "JetBrains",
          "product": "PyCharm",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2025.3.4",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-29T19:16:28.453",
  "references": [
    {
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@jetbrains.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@jetbrains.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible"
    },
    {
      "lang": "es",
      "value": "En JetBrains PyCharm antes de 2025.3.4 era posible un XSS almacenado en celdas Markdown de cuadernos Jupyter."
    }
  ],
  "lastModified": "2026-07-22T06:10:00.170",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jetbrains:pycharm:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4FD21590-E657-4A6D-B205-4E68B9229E20",
              "versionEndExcluding": "2025.3.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@jetbrains.com"
}