PT-2026-93870 · Concrete Cms+1 · Concrete Cms

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CVE-2026-18120

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Published

2026-09-16

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Updated

2026-09-21

CVSS v4.0

6.3

Medium

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.3
Description A legacy Express entry search endpoint returns entry result JSON without invoking the canViewExpressEntries() permission check. This allows an unauthenticated visitor who possesses an Express entity identifier to enumerate search results and disclose attribute values intended for privileged users. For Express entities where supportsEntrySpecificPermissions() returns false, per-entry permission filtering is further disabled through the EntryList::ignorePermissions() function.
Recommendations Update to version 9.5.3 or later.

Exploit

Fix

Missing Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-18120

Affected Products

Concrete Cms