{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "741a0190ddae0f408b22ae3b5f0f4c3f5cf4f11d"
            }
          ],
          "repo": "https://github.com/eladnava/mailgen",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-j2xj-h7w5-r7vp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59526.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "2.0.30"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Prior to version 2.0.30, there is an HTML injection vulnerability in plaintext e-mails generated by Mailgen. Projects are affected if the Mailgen.generatePlaintext(email) method is used and given user-generated content. This vulnerability has been patched in version 2.0.30. A workaround involves stripping all HTML tags before passing any content into Mailgen.generatePlaintext(email).",
  "id": "CVE-2025-59526",
  "modified": "2026-08-12T03:51:11.576460796Z",
  "published": "2025-09-22T19:27:53.323Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59526.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/eladnava/mailgen/security/advisories/GHSA-j2xj-h7w5-r7vp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59526"
    },
    {
      "type": "FIX",
      "url": "https://github.com/eladnava/mailgen/commit/741a0190ddae0f408b22ae3b5f0f4c3f5cf4f11d"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Mailgen: HTML injection vulnerability in plaintext e-mails"
}