Vulnerability-Lookup

GHSA-MV7W-QWQH-W2G9

Vulnerability from github – Published: 2026-07-01 21:36 – Updated: 2026-07-01 21:36

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.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

7.1 (High)


                  
                    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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-58451"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T19:16:56Z",
    "severity": "HIGH"
  },
  "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": "GHSA-mv7w-qwqh-w2g9",
  "modified": "2026-07-01T21:36:20Z",
  "published": "2026-07-01T21:36:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58451"
    },
    {
      "type": "WEB",
      "url": "https://github.com/horde/imp/pull/85"
    },
    {
      "type": "WEB",
      "url": "https://github.com/horde/imp/commit/fba972fab72ee6871e5d56e6390bee38593085de"
    },
    {
      "type": "WEB",
      "url": "https://github.com/horde/imp/releases/tag/v7.0.1"
    },
    {
      "type": "WEB",
      "url": "https://www.horde.org/apps/imp"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/horde-imp-path-traversal-via-compose-php-img-src"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-58451 (GCVE-0-2026-58451)

Vulnerability from cvelistv5 – Published: 2026-07-01 18:16 – Updated: 2026-07-01 18:41 X_Open Source

Title

Horde IMP < 7.0.1 Path Traversal via Compose.php img src

Summary

Severity

7.1 (High)


                        
                          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

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck

References

5 references

URL	Tags
https://github.com/horde/imp/releases/tag/v7.0.1	release-notes
https://github.com/horde/imp/pull/85	issue-tracking
https://github.com/horde/imp/commit/fba972fab72ee…	patch
https://www.horde.org/apps/imp	product
https://www.vulncheck.com/advisories/horde-imp-pa…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
horde	imp	Affected: 0 , < 7.0.1 (semver)

Date Public

2026-07-01 00:00

Credits

evan VulnCheck

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58451",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T18:41:12.206279Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-01T18:41:32.372Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "imp",
          "repo": "https://github.com/horde/imp",
          "vendor": "horde",
          "versions": [
            {
              "lessThan": "7.0.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "evan"
        },
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          "type": "finder",
          "value": "VulnCheck"
        }
      ],
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
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          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "subConfidentialityImpact": "NONE",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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      "providerMetadata": {
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          "tags": [
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          "url": "https://github.com/horde/imp/releases/tag/v7.0.1"
        },
        {
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          "name": "Fix Commit",
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        },
        {
          "name": "Project Webpage",
          "tags": [
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          ],
          "url": "https://www.horde.org/apps/imp"
        },
        {
          "tags": [
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          "url": "https://www.vulncheck.com/advisories/horde-imp-path-traversal-via-compose-php-img-src"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "x_open-source"
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      "title": "Horde IMP \u003c 7.0.1 Path Traversal via Compose.php img src",
      "x_generator": {
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-58451",
    "datePublished": "2026-07-01T18:16:09.328Z",
    "dateReserved": "2026-06-30T20:20:33.789Z",
    "dateUpdated": "2026-07-01T18:41:32.372Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MV7W-QWQH-W2G9

CVE-2026-58451 (GCVE-0-2026-58451)

Tags

Sightings

Nomenclature