CVE-2026-29204

{
  "id": "CVE-2026-29204",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-12T18:16:51.030",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account."
    },
    {
      "lang": "es",
      "value": "Comprobación de propiedad insuficiente en ’clientarea.php’ permite a un usuario autenticado del área de cliente enviar solicitudes utilizando el ’addonId’ de otro usuario sin ninguna validación de propiedad, lo que lleva a acceso no autorizado a la cuenta de la víctima."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "WebPros",
          "product": "WHMCS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7.4.0",
              "lessThanOrEqual": "18.12.2",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "18.13.0",
              "lessThan": "18.13.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.0.0",
              "lessThan": "9.0.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "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:H/I:H/A:N",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-12T21:10:39.672400Z",
          "id": "CVE-2026-29204",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204",
      "source": "[email protected]"
    }
  ]
}