Template Injection Affecting craftcms/cms package, versions >=4.0.0-RC1, <4.17.0-beta.1>=5.0.0-RC1, <5.9.0-beta.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-CRAFTCMSCMS-15440546
- published10 Mar 2026
- disclosed3 Mar 2026
- creditRaj Chowdhury, rlarabee
Introduced: 3 Mar 2026
NewCVE-2026-28784 (opens in a new tab)How to fix?
Upgrade craftcms/cms to version 4.17.0-beta.1, 5.9.0-beta.1 or higher.
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 can execute arbitrary code by crafting a malicious payload if they have administrator access with allowAdminChanges enabled, or if they have access to the System Messages utility.