Concrete CMS patches RCE and CSRF flaws in version 9.5.1

CONCRETE CMS has released version 9.5.1, which addresses critical security vulnerabilities including remote code execution flaws (CVE-2026-8134), insecure deserialization (CVE-2026-8135), and multiple Cross-Site Request Forgery (CSRF) vulnerabilities. The update resolves issues that allowed attackers to execute arbitrary code and bypass authorization mechanisms, potentially compromising server integrity. Administrators are strongly advised to apply the update promptly to protect their systems.