Description (CNA)
Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a blocklist bypass in the Twig create() function because its class-name checks are case-sensitive while PHP class resolution is not. Attackers with template-execution rights, such as Control Panel administrators, can instantiate SplFileObject via a lowercase class name to read .env secrets or write a PHP file into the webroot for remote code execution.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| craftcms / cms | affected 4.0.0 before 4.18.8; unaffected 4.18.8 |
| craftcms / cms | affected 5.0.0 before 5.11.0; unaffected 5.11.0 |
CWE
CWE-184
References
- https://github.com/craftcms/cms/security/advisories/GHSA-w643-x88w-6wcm
- https://www.vulncheck.com/advisories/craft-cms-before-4.18.8-and-5.11.0-twig-create-blocklist-bypass-leading-to-rce
ADP enrichment
No English description supplied.
No references supplied.