Mail-0 Zero Session Hijacking Via Email

{
  "id": "85eb560eef46f5e45caff221d01d220ab292971a5df77db7069411d306bb644a",
  "url": "https://osv.dev/vulnerability/CVE-2025-52557",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Mail-0 Zero Session Hijacking Via Email",
    "summary": "Mail-0's Zero is an open-source email solution. In version 0.8 it's possible for an attacker to craft an email that executes javascript leading to session hijacking due to improper sanitization. This issue has been patched in version 0.81.",
    "evidence": "osv:CVE-2025-52557",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-52557",
      "aliases": [
        "CVE-2025-52557",
        "GHSA-34gh-g567-hq85"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mail-0/zero",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "48d1df65b62c9c57897b72b241081f447140342f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "48d1df65b62c9c57897b72b241081f447140342f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-52557.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.753730950Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52557.json",
        "https://github.com/Mail-0/Zero/security/advisories/GHSA-34gh-g567-hq85",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-52557",
        "https://github.com/Mail-0/Zero/commit/48d1df65b62c9c57897b72b241081f447140342f",
        "https://github.com/Mail-0/Zero/pull/1386"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1384"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "= 0.8"
                  },
                  {
                    "last_affected": "= 0.8"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.81"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52557.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-52557",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521691,
  "published_at": "2025-06-21T01:42:23.004+00:00"
}