23 Oct 2026 15:48:27 UTC
Missing Authorization in legacy Express entries search endpoint allows disclosure of Express entry data
cve-program · CVE-2026-18120 · Published
CVE-2026-18120
Missing Authorization in legacy Express entries search endpoint allows disclosure of Express entry data
CVSS 4.0 6.3 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-18120
PublishedConcrete 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.
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