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Medium · 4.8 CVE-2026-3244 EUVD-2026-9355GHSA-mm5f-5rqw-574f

Concrete CMS below version 9.4.8 is vulnerable to Stored XSS in Search Results via Page Names

Published Mar 4, 2026 · Updated Mar 4, 2026 · Assigned by ConcreteCMS

Description

In Concrete CMS below version 9.4.8, A stored cross-site scripting (XSS) vulnerability exists in the search block where page names and content are rendered without proper HTML encoding in search results. This allows authenticated, rogue administrators to inject malicious JavaScript through page names that executes when users search for and view those pages in search results. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks zolpak for reporting

Affected products

VendorProductAffectedFixed
Concrete CMS Concrete CMS — —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist concrete5/concrete5 < 9.4.8 9.4.8 GHSA-mm5f-5rqw-574f

References