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CVE Watch16 sept 2026

CVE-2026-18120

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpress

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 16 sept 2026 · Última mod.: 16 sept 2026 · CWE-862

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries() permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier could enumerate that entity's entry search results, disclosing attribute values intended to be restricted to privileged users. For Express entities that do not support entry-specific permissions (i.e., supportsEntrySpecificPermissions() returns false), per-entry permission filtering is additionally disabled via EntryList::ignorePermissions(). The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Daniel Powell for reporting.

Referencias oficiales

documentation.concretecms.orghttps://documentation.concretecms.org/developers/introduction/version-history/953-release-notes

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