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CVE-2026-28697

Published: Mar 4, 2026

Modified: Mar 6, 2026

PUBLISHED

Description

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() method, an attacker can write a malicious PHP script to a web-accessible directory and subsequently access it via the browser to execute arbitrary system commands. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

Vendor	Product	Versions
craftcms	cms	affected `>= 5.0.0-RC1, < 5.9.0-beta.1` affected `>= 4.0.0-RC1, < 4.17.0-beta.1`

Weaknesses (CWE)

References

https://github.com/craftcms/cms/security/advisories/GHSA-v47q-jxvr-p68x

x_refsource_CONFIRM

https://github.com/craftcms/cms/pull/18216

x_refsource_MISC

https://github.com/craftcms/cms/pull/18219

x_refsource_MISC

https://github.com/craftcms/cms/commit/9dc2a4a3ec8e9cd5e8c0d1129f36371437519197

x_refsource_MISC

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