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Critical · 9.1 CVE-2026-103475 EUVD-2026-90206GHSA-92vv-q57x-j4vj

yii2-starter-kit through 4.2.0 Debug and Gii Module Exposure

Published Sep 30, 2026 · Updated Sep 30, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
yii2-starter-kit yii2-starter-kit ≤ 4.2.0 —

References