Arbitrary Code Injection Affecting craftcms/cms package, versions >=4.0.0-RC1, <4.16.5>=5.0.0-RC1, <5.8.7
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-12219161
- published28 Aug 2025
- disclosed25 Aug 2025
- creditsingetu0096
Introduced: 25 Aug 2025
NewCVE-2025-57811 (opens in a new tab)How to fix?
Upgrade craftcms/cms to version 4.16.5, 5.8.7 or higher.
Overview
craftcms/cms is a content management system.
Affected versions of this package are vulnerable to Arbitrary Code Injection via the checkArrowFunction function in src/web/twig/Extension.php. An attacker can execute arbitrary code by injecting malicious payloads into templates.
Note:
This is exploitable if the attacker has administrator access and the ALLOW_ADMIN_CHANGES setting is enabled.