CVE-2026-57859

e107 prior to version 2.3.8 contains a code execution vulnerability in the e_array deserialization handler that allows an attacker with out-of-band database write access to execute arbitrary PHP code by storing a crafted payload in the user_prefs column. The e_array::unserialize() function in e107_handlers/core_functions.php performs only a prefix check for the string 'array' before passing the stored value to eval(), causing automatic PHP execution whenever the affected user's preferences are materialized through e_user_pref::load().

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/e107inc/e107
https://github.com/e107inc/e107/commit/40e73cefde85b32e1227dfac9956a5cb87046277
https://github.com/e107inc/e107/security/advisories/GHSA-568x-w5qj-vr7c
https://www.vulncheck.com/advisories/e107-second-order-code-execution-via-eval-based-deserialization-in-e-array-unserialize
https://github.com/e107inc/e107/security/advisories/GHSA-568x-w5qj-vr7c

Configurations

No configuration.

History

23 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) e107 anterior a la versión 2.3.8 contiene una vulnerabilidad de ejecución de código en el gestor de deserialización e_array que permite a un atacante con acceso de escritura a la base de datos fuera de banda ejecutar código PHP arbitrario almacenando una carga útil diseñada en la columna user_prefs. La función e_array::unserialize() en e107_handlers/core_functions.php realiza solo una comprobación de prefijo para la cadena ’array’ antes de pasar el valor almacenado a eval(), causando la ejecución automática de PHP cada vez que las preferencias del usuario afectado se materializan a través de e_user_pref::load().

Information

Published : 2026-07-30 14:16

Updated : 2026-10-23 22:10

NVD link : CVE-2026-57859

Mitre link : CVE-2026-57859

CVE.ORG link : CVE-2026-57859

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

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