FKIE_CVE-2026-26279

Vulnerability from fkie_nvd - Published: 2026-03-03 23:15 - Updated: 2026-03-05 21:19
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
Froxlor is open source server administration software. Prior to 2.3.4, a typo in Froxlor's input validation code (== instead of =) completely disables email format checking for all settings fields declared as email type. This allows an authenticated admin to store arbitrary strings in the panel.adminmail setting. This value is later concatenated into a shell command executed as root by a cron job, where the pipe character | is explicitly whitelisted. The result is full root-level Remote Code Execution. This vulnerability is fixed in 2.3.4.
References
security-advisories@github.comhttps://github.com/froxlor/Froxlor/security/advisories/GHSA-33mp-8p67-xj7cExploit, Mitigation, Vendor Advisory
security-advisories@github.comhttps://github.com/froxlor/froxlor/commit/22249677107f8f39f8d4a238605641e87dab4343Patch
security-advisories@github.comhttps://github.com/froxlor/froxlor/releases/tag/2.3.4Release Notes
Impacted products
Vendor Product Version
froxlor froxlor *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "49CEB95F-CF4B-45DB-A6A7-B6CE5E1F9961",
              "versionEndExcluding": "2.3.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Froxlor is open source server administration software. Prior to 2.3.4, a typo in Froxlor\u0027s input validation code (== instead of =) completely disables email format checking for all settings fields declared as email type. This allows an authenticated admin to store arbitrary strings in the panel.adminmail setting. This value is later concatenated into a shell command executed as root by a cron job, where the pipe character | is explicitly whitelisted. The result is full root-level Remote Code Execution. This vulnerability is fixed in 2.3.4."
    },
    {
      "lang": "es",
      "value": "Froxlor es software de administraci\u00f3n de servidor de c\u00f3digo abierto. Antes de la versi\u00f3n 2.3.4, un error tipogr\u00e1fico en el c\u00f3digo de validaci\u00f3n de entrada de Froxlor (== en lugar de =) deshabilita completamente la verificaci\u00f3n del formato de correo electr\u00f3nico para todos los campos de configuraci\u00f3n declarados como tipo de correo electr\u00f3nico. Esto permite a un administrador autenticado almacenar cadenas arbitrarias en la configuraci\u00f3n panel.adminmail. Este valor se concatena posteriormente en un comando de shell ejecutado como root por una tarea cron, donde el car\u00e1cter de tuber\u00eda | est\u00e1 expl\u00edcitamente en la lista blanca. El resultado es una ejecuci\u00f3n remota de c\u00f3digo completa a nivel de root. Esta vulnerabilidad se corrige en la versi\u00f3n 2.3.4."
    }
  ],
  "id": "CVE-2026-26279",
  "lastModified": "2026-03-05T21:19:02.577",
  "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": "2026-03-03T23:15:55.223",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/froxlor/Froxlor/security/advisories/GHSA-33mp-8p67-xj7c"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/froxlor/froxlor/commit/22249677107f8f39f8d4a238605641e87dab4343"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/froxlor/froxlor/releases/tag/2.3.4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        },
        {
          "lang": "en",
          "value": "CWE-482"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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