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Published: 10/03/2025 Updated: 10/03/2025

Stored XSS in Concrete CMS Folder Function Targeting Admin Interfaces

Concrete CMS versions 9.0.0 up to and including 9.3.9 are affected by a stored XSS in Folder Function.The "Add Folder" functionality lacks input sanitization, allowing a rogue admin to inject XSS payloads as folder names. The Concrete CMS security team gave this vulnerability a CVSS 4.0 Score of 4.8 with vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N. Versions below 9 are not affected. Thanks, Alfin Joseph for reporting.

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CWE-20 https://nvd.nist.gov https://www.first.org/epss https://documentation.concretecms.org/9-x/developers/introduction/version-history/940-release-notes https://github.com/concretecms/bedrock/pull/370 https://github.com/concretecms/concretecms/pull/12454

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CVE-2025-0660

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