CVE-2026-3242

Concrete CMS below 9.4.8 is vulnerable to Stored XSS in the Switch Language block

CVSS 4.8 MEDIUMEPSS 0.2%CWE-79

In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block. 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 M3dium for reporting.

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

Produtos afetados

Concrete CMS · Concrete CMS

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Referências

https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes https://github.com/concretecms/concretecms/pull/12826