FKIE_CVE-2026-33656

Vulnerability from fkie_nvd - Published: 2026-04-22 21:17 - Updated: 2026-04-23 15:37
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, EspoCRM's built-in formula scripting engine allowing updating attachment's sourceId thus allowing an authenticated admin to overwrite the `sourceId` field on `Attachment` entities. Because `sourceId` is concatenated directly into a file path with no sanitization in `EspoUploadDir::getFilePath()`, an attacker can redirect any file read or write operation to an arbitrary path within the web server's `open_basedir` scope. Version 9.3.4 fixes the issue.
References
security-advisories@github.comhttps://github.com/espocrm/espocrm/security/advisories/GHSA-7922-x7cf-j54x
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/espocrm/espocrm/security/advisories/GHSA-7922-x7cf-j54x
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, EspoCRM\u0027s built-in formula scripting engine allowing updating attachment\u0027s sourceId thus allowing an authenticated admin to overwrite the `sourceId` field on `Attachment` entities. Because `sourceId` is concatenated directly into a file path with no sanitization in `EspoUploadDir::getFilePath()`, an attacker can redirect any file read or write operation to an arbitrary path within the web server\u0027s `open_basedir` scope. Version 9.3.4 fixes the issue."
    }
  ],
  "id": "CVE-2026-33656",
  "lastModified": "2026-04-23T15:37:23.117",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-22T21:17:05.330",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/espocrm/espocrm/security/advisories/GHSA-7922-x7cf-j54x"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/espocrm/espocrm/security/advisories/GHSA-7922-x7cf-j54x"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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