CRITICAL 9.3 NVD
CVE-2026-103475
yii2-starter-kit through 4.2.0 exposes the Yii debug and Gii modules to all IP addresses by setting allowedIPs to ['*'] in its default development configuration
yii2-starter-kit through 4.2.0 exposes the Yii debug and Gii modules to all IP addresses by setting allowedIPs to ['*'] in its default development configuration. Unauthenticated remote attackers can access the debug endpoint to read sensitive data including session cookies and database queries, or access the Gii endpoint to generate and write PHP files into the application directory.
References
- https://github.com/yii-starter-kit/yii2-starter-kit
- https://github.com/yii-starter-kit/yii2-starter-kit/blob/cc2c451e8c959c7300b04efea597706a3
- https://github.com/yii-starter-kit/yii2-starter-kit/issues/797
- https://www.vulncheck.com/advisories/yii2-starter-kit-through-4.2.0-debug-and-gii-module-e
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-09-30 via NVD.
Risk Timeline
CVE Disclosed2026-09-30 · -1 days ago
Remediation Resources
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