CVE-2026-1770: Craftercms

Medium severity, CVSS 4.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticated developers to execute OS commands via Groovy Sandbox Bypass. By inserting malicious Groovy elements, an attacker may bypass sandbox restrictions and obtain RCE (Remote Code Execution).

Affected products

• Craftercms Craftercms: from 4.0.0, before 4.5.0 (fixed in 4.5.0)

Published 2026-02-02. Last modified 2026-06-17.