Security advisory

{
  "id": "123a60d889d65f93bc8c2eda6a74e7341f9fa9a4fdf36e1f0c9a38927ea9a00a",
  "url": "https://osv.dev/vulnerability/CVE-2016-9920",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-9920",
    "summary": "steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.",
    "evidence": "osv:CVE-2016-9920",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-9920",
      "aliases": [
        "CVE-2016-9920"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/roundcube/roundcubemail",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "802d11915393a0811c90d9a791c2cf62528a8075"
                },
                {
                  "introduced": "1d7be448f309d33c6ad4252c0abf581402891f22"
                },
                {
                  "last_affected": "444fdb6161bdb0c5e90d41e30803f10e8dd5f9e8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.1.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:roundcube:webmail:1.2.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:roundcube:webmail:1.2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.1"
                      },
                      {
                        "last_affected": "1.2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:roundcube:webmail:1.2.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.2"
                      },
                      {
                        "last_affected": "1.2.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.0",
            "1.2.1",
            "1.2.2",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.1-rc",
            "1.1-beta",
            "v0.1-beta2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9920.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:03.080791695Z",
      "provider": "osv",
      "references": [
        "https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released",
        "https://security.gentoo.org/glsa/201612-44",
        "https://blog.ripstech.com/2016/roundcube-command-execution-via-email/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-9920",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440164,
  "published_at": "2016-12-08T18:59:00.2+00:00"
}