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.
History

Thu, 01 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Yii2-starter-kit
Yii2-starter-kit yii2-starter-kit
Vendors & Products Yii2-starter-kit
Yii2-starter-kit yii2-starter-kit

Wed, 30 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title yii2-starter-kit through 4.2.0 Debug and Gii Module Exposure
Weaknesses CWE-489
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-30T17:22:41.761Z

Updated: 2026-09-30T19:13:28.143Z

Reserved: 2026-09-30T16:03:00.735Z

Link: CVE-2026-103475

cve-icon Vulnrichment

Updated: 2026-09-30T19:13:23.630Z

cve-icon NVD

Status : Deferred

Published: 2026-09-30T18:18:17.817

Modified: 2026-09-30T20:17:31.447

Link: CVE-2026-103475

cve-icon Redhat

No data.