Packagist/concrete5/concrete5 CVE-2026-8203: medium 5.4, EPSS 0.12%
Concrete CMS has Stored XSS through its height parameter
Action: Upgrade concrete5/concrete5 to 9.5.1 or later.
composer require concrete5/concrete5:9.5.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 9.5.1 | - |
Fixed versions
| 9.5.1 |
Sources
- osv: GHSA-9v2g-37mp-qpxf
- nvd: CVE-2026-8203
- https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes
- https://github.com/concretecms/concretecms
CVE-2026-8203 · published · modified · JSON