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CVE-2026-48997

Full vulnerability record from the local CVENow database.

Description

e107 is a content management system (CMS). Versions 2.3.5 and earlier contain a command injection vulnerability in the ImageMagick resize destination path. In resize_image(), the source path is escaped with escapeshellarg(), but the destination path is inserted inside raw double quotes in the convert command; in the submit-news upload flow, that destination filename includes the first six characters of user-controlled news title input. Because the title filter removes literal spaces but not tab characters, and shell expansions such as $(...) and backticks can survive into the quoted destination argument, /bin/sh -c may evaluate attacker-controlled input. Exploitation is possible only when all of the following non-default settings are enabled: resize_method=ImageMagick, subnews_attach=1, upload_enabled=1, subnews_resize is numeric between 30 and 5000, and the attacker is a non-admin in classes permitted by both subnews_class and upload_class. This issue has been fixed in version 2.3.6.

Severity
HIGH
CVSS score
7.1 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-17 22:16:23.737000
Last modified
2026-10-26 12:10:00.130000
View original CVE JSON
{
  "id": "CVE-2026-48997",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-17T22:16:23.737",
  "lastModified": "2026-10-26T12:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "e107 is a content management system (CMS). Versions  2.3.5 and earlier contain a command injection vulnerability in the ImageMagick resize destination path. In resize_image(), the source path is escaped with escapeshellarg(), but the destination path is inserted inside raw double quotes in the convert command; in the submit-news upload flow, that destination filename includes the first six characters of user-controlled news title input. Because the title filter removes literal spaces but not tab characters, and shell expansions such as $(...) and backticks can survive into the quoted destination argument, /bin/sh -c may evaluate attacker-controlled input. Exploitation is possible only when all of the following non-default settings are enabled: resize_method=ImageMagick, subnews_attach=1, upload_enabled=1, subnews_resize is numeric between 30 and 5000, and the attacker is a non-admin in classes permitted by both subnews_class and upload_class. This issue has been fixed in version 2.3.6."
    },
    {
      "lang": "es",
      "value": "e107 es un sistema de gestión de contenido (CMS). Las versiones 2.3.5 y anteriores contienen una vulnerabilidad de inyección de comandos en la ruta de destino de redimensionamiento de ImageMagick. En resize_image(), la ruta de origen se escapa con escapeshellarg(), pero la ruta de destino se inserta dentro de comillas dobles sin procesar en el comando convert; en el flujo de carga de submit-news, ese nombre de archivo de destino incluye los primeros seis caracteres de la entrada del título de la noticia controlada por el usuario. Debido a que el filtro de título elimina los espacios literales pero no los caracteres de tabulación, y las expansiones de shell como $(...) y las comillas inversas pueden sobrevivir en el argumento de destino entre comillas, /bin/sh -c puede evaluar la entrada controlada por el atacante. La explotación es posible solo cuando todas las siguientes configuraciones no predeterminadas están habilitadas: resize_method=ImageMagick, subnews_attach=1, upload_enabled=1, subnews_resize es numérico entre 30 y 5000, y el atacante es un no-administrador en las clases permitidas por subnews_class y upload_class. Este problema ha sido solucionado en la versión 2.3.6."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "e107inc",
          "product": "e107",
          "versions": [
            {
              "version": "< 2.3.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-18T13:05:40.518821Z",
          "id": "CVE-2026-48997",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/e107inc/e107/releases/tag/v2.3.6",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/e107inc/e107/security/advisories/GHSA-3j33-c9v4-4p42",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/e107inc/e107/security/advisories/GHSA-3j33-c9v4-4p42",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}