CVE Watch30 jul 2026

CVE-2026-54365

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers t

CVSS

7.5

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 30 jul 2026 · Última mod.: 30 jul 2026 · CWE-306

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers to create arbitrary local OS user accounts by supplying a crafted base64-encoded XML string to exposed API endpoints. Attackers can send a malicious StorageConfigure parameter to the jsonimportuserbyupn, jsonimportuserbyupnex, or japiimportuserbyupn endpoints to trigger InternalImportAdUserByUPN(), causing GladinetCloudMonitor.exe to invoke the NetUserAdd Windows API with attacker-controlled credentials and create arbitrary directories on the server filesystem.

Referencias oficiales

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