{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2021-44026",
  "revision": 1,
  "title": "Roundcube — search parameters folded into the query",
  "summary": "Roundcube before 1.3.17 and 1.4.12 puts search parameters into an SQL query without escaping them, so a crafted search reaches the mail database directly.",
  "source_type": "cve",
  "severity": "critical",
  "cvss": {
    "score": 9.8,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "version": "3.1"
  },
  "epss": 0.41856,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": false,
    "attack_complexity": "low",
    "kev_added": "2023-06-22",
    "prerequisites": "Access to the webmail search function."
  },
  "remediation": {
    "patch_available": true,
    "fixed_in": [
      "Roundcube Webmail >= 1.3.17",
      "Roundcube Webmail >= 1.4.12"
    ]
  },
  "mitre_attack": [
    "T1190"
  ],
  "kill_chain": "collection",
  "recommended_action": "Update Roundcube to 1.3.17 or 1.4.12. The injection lands in the mail database, so an exposed instance owes you a look at what could have been read.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2021-44026",
      "retrieved_at": "2026-09-24T12:52:19.575Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-09-24T12:52:19.575Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2021-44026",
      "retrieved_at": "2026-09-24T12:52:19.575Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2021-44026",
      "retrieved_at": "2026-09-24T12:52:19.575Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44026",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "vendor_advisory",
      "url": "https://bugs.debian.org/1000156"
    },
    {
      "type": "vendor_advisory",
      "url": "https://github.com/roundcube/roundcubemail/commit/c8947ecb762d9e89c2091bda28d49002817263f1"
    },
    {
      "type": "vendor_advisory",
      "url": "https://github.com/roundcube/roundcubemail/commit/ee809bde2dcaa04857a919397808a7296681dcfa"
    }
  ],
  "published_at": "2021-11-19T04:15:07.197Z",
  "issued_at": "2026-09-24T12:52:19.575Z",
  "tags": [
    "roundcube",
    "webmail",
    "sql-injection",
    "email",
    "kev"
  ]
}