Yii2-starter-kit vulnerabilities
Published CVEs affecting Yii2-starter-kit products: 3 record(s), with severity, exploitation and fixes.
CVE-2026-103476
Medium · 5.3
CWE-639 Sep 30, 2026
yii2-starter-kit through 4.2.0 Unauthorized File Download via attachment-download
yii2-starter-kit through 4.2.0 fails to validate article publication status in the attachment-download endpoint, allowing unauthenticated attackers to download files from draft articles. Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.
CVE-2026-103475
Critical · 9.1
CWE-489 Sep 30, 2026
yii2-starter-kit through 4.2.0 Debug and Gii Module Exposure
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.
CVE-2026-103474
High · 8.8
CWE-434 Sep 30, 2026
yii2-starter-kit through 4.2.0 Unrestricted File Upload RCE
yii2-starter-kit through 4.2.0 fails to validate file types in the backend storage upload actions, allowing authenticated managers to upload PHP files. Attackers with manager role can upload PHP scripts to the web-accessible storage directory and request them to execute arbitrary code on the server.