CVE-2026-34413

{
  "id": "CVE-2026-34413",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-22T19:17:02.710",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read."
    },
    {
      "lang": "es",
      "value": "Xerte Online Toolkits versiones 3.15 y anteriores contienen una vulnerabilidad de autenticación faltante en el endpoint del conector elFinder en /editor/elfinder/php/connector.php donde un redireccionamiento HTTP a llamadores no autenticados no invoca exit() o die(), permitiendo que la ejecución de PHP continúe y procese la solicitud completa en el lado del servidor. Atacantes no autenticados pueden realizar operaciones de archivo en directorios de medios del proyecto, incluyendo la creación de directorios, la carga de archivos, el cambio de nombre de archivos, la duplicación de archivos, la sobrescritura de archivos y la eliminación de archivos, lo que puede encadenarse con vulnerabilidades de salto de ruta y de lista negra de extensiones para lograr la ejecución remota de código y la lectura arbitraria de archivos."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "thexerteproject",
          "product": "xerteonlinetoolkits",
          "defaultStatus": "unaffected",
          "repo": "https://github.com/thexerteproject/xerteonlinetoolkits",
          "packageURL": "pkg:github/thexerteproject/xerteonlinetoolkits",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "3.15.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/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",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-23T13:02:47.014600Z",
          "id": "CVE-2026-34413",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/bootstrapbool/xerteonlinetoolkits-rce",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527",
      "source": "[email protected]"
    },
    {
      "url": "https://www.vulncheck.com/advisories/xerte-online-toolkits-missing-authentication-via-connector-php",
      "source": "[email protected]"
    },
    {
      "url": "https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits",
      "source": "[email protected]"
    },
    {
      "url": "https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html",
      "source": "[email protected]"
    }
  ]
}