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CVE-2025-47786

Estado: AnalizadaBaja (1.9)—

Emlog is an open source website building system. Version 2.5.13 has a stored cross-site scripting vulnerability that allows any registered user to construct malicious JavaScript, inducing all website users to click. In `/admin/comment.php`, the parameter `perpage_num` is not validated and is directly stored in the `admin_commend_perpage_num` field of the `emlog_options` table in the database. Moreover, the output is not filtered, resulting in the direct output of malicious code. As of time of publication, it is unclear if a patch exists.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Emlog — Emlog

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-47786",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "automatable": "no"
            },
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            }
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          "version": "2.0.3",
          "timestamp": "2025-05-19T14:39:47.319875Z"
        }
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        "source": "nvd@nist.gov",
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          "integrityImpact": "LOW",
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          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
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    "cvssMetricV40": [
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        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 1.9,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "valueDensity": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "NONE",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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  "published": "2025-05-15T20:16:09.077",
  "references": [
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      "url": "https://github.com/emlog/emlog/security/advisories/GHSA-82qc-9vg7-2c6c",
      "tags": [
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        "Vendor Advisory"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Emlog is an open source website building system. Version 2.5.13 has a stored cross-site scripting vulnerability that allows any registered user to construct malicious JavaScript, inducing all website users to click. In `/admin/comment.php`, the parameter `perpage_num` is not validated and is directly stored in the `admin_commend_perpage_num` field of the `emlog_options` table in the database. Moreover, the output is not filtered, resulting in the direct output of malicious code. As of time of publication, it is unclear if a patch exists."
    },
    {
      "lang": "es",
      "value": "Emlog es un sistema de código abierto para la creación de sitios web. La versión 2.5.13 presenta una vulnerabilidad de cross-site scripting almacenado que permite a cualquier usuario registrado crear JavaScript malicioso, induciendo a todos los usuarios del sitio web a hacer clic. En `/admin/comment.php`, el parámetro `perpage_num` no está validado y se almacena directamente en el campo `admin_commend_perpage_num` de la tabla `emlog_options` de la base de datos. Además, la salida no se filtra, lo que resulta en la salida directa de código malicioso. Al momento de la publicación, no se sabe con certeza si existe un parche."
    }
  ],
  "lastModified": "2026-06-17T09:28:41.420",
  "configurations": [
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        {
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              "vulnerable": true,
              "matchCriteriaId": "B2A83BE6-9F29-4C34-9CC9-E731C61A1238"
            }
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          "operator": "OR"
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}