{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.0.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d3f0ce22fb68ccbf0d45ae35b538c0007e047415"
            },
            {
              "fixed": "fba972fab72ee6871e5d56e6390bee38593085de"
            }
          ],
          "repo": "https://github.com/horde/imp",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58451.json"
  },
  "details": "Horde IMP before 7.0.1 contains a path traversal vulnerability in lib/Compose.php that allows authenticated attackers to read arbitrary files from the server filesystem by embedding traversal sequences after a CKEditor path prefix in img src URLs. Attackers can bypass the stripos() prefix validation by appending sequences such as traversal segments after the matching prefix, causing file_get_contents() to read sensitive files whose contents are then exfiltrated as MIME parts in outgoing email; unauthenticated exploitation is also achievable via CSRF against an active authenticated session.",
  "id": "CVE-2026-58451",
  "modified": "2026-07-08T05:37:49.775001404Z",
  "published": "2026-07-01T18:16:09.328Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2026/Jul/8"
    },
    {
      "type": "WEB",
      "url": "https://www.horde.org/apps/imp"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58451.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/horde/imp/releases/tag/v7.0.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58451"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/horde-imp-path-traversal-via-compose-php-img-src"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/horde/imp/pull/85"
    },
    {
      "type": "FIX",
      "url": "https://github.com/horde/imp/commit/fba972fab72ee6871e5d56e6390bee38593085de"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/horde/imp"
    },
    {
      "type": "EVIDENCE",
      "url": "https://blog.evan.lat/posts/CVE-2026-58451/"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Horde IMP \u003c 7.0.1 Path Traversal via Compose.php img src"
}