Threats Tagged 'ghsa-cc2g-26rw-g997'

Craft CMS versions 4.0.0-RC1 before 4.18.2 and 5.0.0-RC1 before 5.10.6 contain a vulnerability where environment variables and secrets are interpolated into Twig templates even when sandboxing is enabled. An authenticated attacker with control panel access can exploit this to leak sensitive environment variables incrementally using a blind error-based technique. This can lead to session forgery, privilege escalation, and theft of credentials such as database, SMTP, API, or blob storage keys. The issue is fixed in versions 4.18.2 and 5.10.6.

Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 interpolate environment variables and secrets (via ${ENV_VAR} strings in the elementId parameter) into Twig templates before rendering, even when the Twig sandbox is enabled. An authenticated attacker with control panel access can render a malicious sandboxed Twig template and, using a blind error-based technique across many requests, incrementally leak arbitrary environment variables and secrets. These can be abused to forge sessions (via CRAFT_SECURITY_KEY), escalate privileges, and steal database, SMTP, API, or blob storage credentials. Fixed in 5.10.6 and 4.18.2.