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CVE-2026-48849

Estado: AplazadaMedia (4.4)—

In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, an unsanitized subject field in the draft restored value could lead to stored XSS/HTML/CSS injection on shared mailboxes.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Roundcube — WebmailAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-48849",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48849",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-26T13:01:01.120678Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.3
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "Roundcube",
          "product": "Webmail",
          "versions": [
            {
              "status": "affected",
              "version": "1.6.0",
              "lessThan": "1.6.16",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.7.0",
              "lessThan": "1.7.1",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-25T20:16:37.540",
  "references": [
    {
      "url": "https://github.com/roundcube/roundcubemail/commit/189d30a4890319cd687df959ca9f768a3a613d61",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/commit/a21519187873ce962db029b6ff68e47bd7f3fd8a",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.16",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.1",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1",
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, an unsanitized subject field in the draft restored value could lead to stored XSS/HTML/CSS injection on shared mailboxes."
    },
    {
      "lang": "es",
      "value": "En Roundcube Webmail 1.6.x anterior a 1.6.16 y 1.7.x anterior a 1.7.1, un campo de asunto no saneado en el valor restaurado del borrador podría conducir a una inyección almacenada de XSS/HTML/CSS en buzones compartidos."
    }
  ],
  "lastModified": "2026-07-24T10:10:00.197",
  "sourceIdentifier": "cve@mitre.org"
}