Craftcms CMS Twig Sandbox enableTwigSandbox privileges management

Summaryinfo

A vulnerability identified as problematic has been detected in Craftcms CMS. The impacted element is the function enableTwigSandbox of the component Twig Sandbox. Performing a manipulation results in privileges management. This vulnerability is identified as CVE-2026-72781. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Craftcms CMS (affected version not known). It has been classified as problematic. This affects the function enableTwigSandbox of the component Twig Sandbox. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Craft CMS versions >= 5.0.0-RC1 before 5.10.7 and >= 4.0.0-RC1 before 4.18.3 contain a remote code execution vulnerability in the Twig sandbox mechanism. Because Craft marks the ElementInterface as safe (via the AllowedInSandbox attribute) and the sandbox allowlisting extends to the entire class hierarchy (craft\base\Component up to yii\base\Component), an authenticated attacker with permission to access the control panel can render a malicious Twig template that abuses the yii\base\Component arbitrary function-call gadget to execute arbitrary code, even when the Twig sandbox is enabled via enableTwigSandbox().

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-72781 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/11/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Content Management System

Vendor

• Craftcms

Name

• CMS

Website

• Product: https://github.com/craftcms/cms/

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