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CVE-2026-25237

Estado: AnalizadaCrítica (9.2)—

PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, use of preg_replace() with the /e modifier in bug update email handling can enable PHP code execution if attacker-controlled content reaches the evaluated replacement. This issue has been patched in version 1.33.0.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad remota en PEAR (AV:N, PR:N, UI:N) que permite RCE vía preg_replace(/e) con contenido controlado en email de actualizaciones; ejecución de código PHP arbitrario y potencial manipulación de datos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentRestrict File and Directory PermissionsRemote Data StorageNetwork Segmentation

Tecnologías afectadas (1)

Pear — Pearweb

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-25237",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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            },
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              "technicalImpact": "total"
            }
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          "version": "2.0.3",
          "timestamp": "2026-02-04T20:21:43.501877Z"
        }
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "vulnStatus": "Analyzed",
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      "description": [
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          "value": "CWE-624"
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    }
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    },
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    }
  ],
  "lastModified": "2026-06-17T10:24:21.403",
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}