Craft CMS disclosed six vulnerabilities affecting 4.x and 5.x releases, including a critical remote code execution flaw tracked as CVE-2026-72781. The most severe issue affects versions 5.0.0-RC1 through before 5.10.7 and 4.0.0-RC1 through before 4.18.3, where an authenticated user with control panel access can render a malicious Twig template and execute arbitrary code even when the Twig sandbox is enabled. The flaw stems from Craft marking ElementInterface as safe and extending sandbox allowlisting through the class hierarchy to yii\base\Component, creating an arbitrary function-call gadget.

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2 events from the most recent confirmed update back to the earliest known activity.
A new CVE, CVE-2026-72781, was received by disclosure@vulncheck.com for a remote code execution flaw in Craft CMS involving a Twig sandbox escape. The issue affects Craft CMS 5.0.0-RC1 through before 5.10.7 and 4.0.0-RC1 through before 4.18.3.
Six Craft CMS vulnerabilities were publicly reported, including one critical and five high-severity issues spanning remote code execution, tampering, privilege escalation, information disclosure, authentication bypass, and arbitrary file read. The disclosure noted affected 4.x and 5.x versions and advised users to update according to the vendor’s security bulletins.
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