fkie_cve-2025-66514
Vulnerability from fkie_nvd
Published
2025-12-05 18:15
Modified
2025-12-05 18:15
Severity ?
3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Summary
Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app's message list allowed an authenticated user to inject HTML into the email subjects. Javascript was correctly blocked by the content security policy of the Nextcloud Server code.
References
security-advisories@github.comhttps://github.com/nextcloud/mail/commit/c64fcc3b79e0c089b5e1d2e04a07bfa740b2ac09
security-advisories@github.comhttps://github.com/nextcloud/mail/pull/11740
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-v394-8gpc-6fv5
security-advisories@github.comhttps://hackerone.com/reports/3357036
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app\u0027s message list allowed an authenticated user to inject HTML into the email subjects. Javascript was correctly blocked by the content security policy of the Nextcloud Server code."
    }
  ],
  "id": "CVE-2025-66514",
  "lastModified": "2025-12-05T18:15:57.457",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-05T18:15:57.457",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextcloud/mail/commit/c64fcc3b79e0c089b5e1d2e04a07bfa740b2ac09"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextcloud/mail/pull/11740"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v394-8gpc-6fv5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://hackerone.com/reports/3357036"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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