CVE-2026-3452: Concrete CMS vulnerable to Remote Code Execution by stored PHP object injection

high Affects concrete5/concrete5. Feed 2026.10.29.1, updated 2026-10-28; published 2026-03-04.

Concrete CMS vulnerable to Remote Code Execution by stored PHP object injection

Package: concrete5/concrete5 Composer
Affected versions: <9.4.8
Fixed in: 9.4.8
Severity: high
Exploitation: not on CISA KEV · EPSS 1% (50.0th percentile)
Published: 2026-03-04
Source: osv.dev

References

NVD record concrete5/concrete5 advisories

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