CVE-2026-28783 Craft has a Twig Function Blocklist Bypass

Craft is a content management system CMS. Prior to 5.9.0-beta.1 and 4.17.0-beta.1, Craft CMS implements a blocklist to prevent potentially dangerous PHP functions from being called via Twig non-Closure arrow functions. In order to be able to successfully execute this attack, you need to either ha...

CVE-2026-28783 Craft has a Twig Function Blocklist Bypass

Craft is a content management system CMS. Prior to 5.9.0-beta.1 and 4.17.0-beta.1, Craft CMS implements a blocklist to prevent potentially dangerous PHP functions from being called via Twig non-Closure arrow functions. In order to be able to successfully execute this attack, you need to either ha...

CVE-2026-28783

Craft is a content management system CMS. Prior to 5.9.0-beta.1 and 4.17.0-beta.1, Craft CMS implements a blocklist to prevent potentially dangerous PHP functions from being called via Twig non-Closure arrow functions. In order to be able to successfully execute this attack, you need to either ha...

CVE-2026-28783

CVE-2026-28783 affects Craft CMS (Craft CMS core) where a blocklist of potentially dangerous PHP functions is bypassable via Twig non-Closure arrow functions. Affected versions are prior to 5.9.0-beta.1 and 4.17.0-beta.1. Successful exploitation requires attacker permissions (production allowAdmi...

CVE-2026-28783 Craft has a Twig Function Blocklist Bypass

Craft is a content management system CMS. Prior to 5.9.0-beta.1 and 4.17.0-beta.1, Craft CMS implements a blocklist to prevent potentially dangerous PHP functions from being called via Twig non-Closure arrow functions. In order to be able to successfully execute this attack, you need to either ha...

CVE-2026-28697

Craft is a content management system CMS. Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution RCE by injecting a Server-Side Template Injection SSTI payload into Twig template fields e.g., Email Templates. By calling the craft.app.fs.write...

CVE-2026-28697

Craft CMS (CMS, versions prior to 4.17.0-beta.1 and 5.9.0-beta.1) is affected by an authenticated-admin remote code execution (RCE) via Server-Side Template Injection (SSTI) in Twig template fields (for example, Email Templates). The underlying issue is exploitability through the craft.app.fs.wri...

CVE-2026-28697 Craft Affected by Authenticated RCE via "craft.app.fs.write()" in Twig Templates

Craft is a content management system CMS. Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution RCE by injecting a Server-Side Template Injection SSTI payload into Twig template fields e.g., Email Templates. By calling the craft.app.fs.write...

CVE-2026-28697 Craft Affected by Authenticated RCE via "craft.app.fs.write()" in Twig Templates

Craft is a content management system CMS. Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution RCE by injecting a Server-Side Template Injection SSTI payload into Twig template fields e.g., Email Templates. By calling the craft.app.fs.write...

CVE-2026-28697 Craft Affected by Authenticated RCE via "craft.app.fs.write()" in Twig Templates

Craft is a content management system CMS. Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution RCE by injecting a Server-Side Template Injection SSTI payload into Twig template fields e.g., Email Templates. By calling the craft.app.fs.write...

CVE-2026-28695 Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget

Craft is a content management system CMS. There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create Twig function combined with a Symfony Process gadget chain. The create Twig function exposes Craft::createObject, which allows instantiation of...

CVE-2026-28695

Summary of CVE-2026-28695 : Craft CMS 5.8.21 is vulnerable to an authenticated RCE via Server-Side Template Injection using the Twig create() function to trigger a Symfony Process gadget chain. The create() function exposes Craft::createObject(), enabling instantiation of arbitrary PHP classes wi...

CVE-2026-28695 Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget

Craft is a content management system CMS. There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create Twig function combined with a Symfony Process gadget chain. The create Twig function exposes Craft::createObject, which allows instantiation of...

CVE-2026-28695 Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget

Craft is a content management system CMS. There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create Twig function combined with a Symfony Process gadget chain. The create Twig function exposes Craft::createObject, which allows instantiation of...

Craft CMS 安全漏洞

Craft CMS is an open-source content management system developed by Craft CMS. Versions prior to 5.8.22 and 4.16.18 of Craft CMS had security vulnerabilities. These vulnerabilities stemmed from the use of the Twig map filter in text fields, which could allow the construction of malicious payloads,...

Craft CMS 安全漏洞

Craft CMS is an open-source content management system developed by Craft CMS. Version 5.8.21 of Craft CMS contains a security vulnerability. This vulnerability stems from server-side template injection via the create Twig function, combined with the Symfony Process toolchain, potentially allowing...

Craft CMS 安全漏洞

Craft CMS is an open-source content management system developed by Craft Foundation. Versions prior to Craft CMS 4.17.0-beta.1 and 5.9.0-beta.1 contained security vulnerabilities. These vulnerabilities stemmed from server-side template injection attacks, where payloads were injected into Twig...

GHSA-QC86-Q28F-GGWW Craft CMS has potential authenticated Remote Code Execution via Twig SSTI

For this to work, the attacker must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled, which is against Craft CMS' recommendations for any non-dev environment. https://craftcms.com/knowledge-base/securing-craftset-allowAdminChanges-to-false-in-production...

Template Injection

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Template Injection via the map filter in Twig templates when processing text fields that accept Twig input in the control panel settings or through the System Messages utility. An attacker ca...

Craft CMS has potential authenticated Remote Code Execution via Twig SSTI

For this to work, the attacker must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled, which is against Craft CMS' recommendations for any non-dev environment. https://craftcms.com/knowledge-base/securing-craftset-allowAdminChanges-to-false-in-production...