{"id":"CVE-2026-103475","title":"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","summary":"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 sens…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-489"],"vendor":"yii2-starter-kit","product":"yii2-starter-kit","affected":["yii2-starter-kit <= 4.2.0"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T20:17:31.447","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103475","references":[{"url":"https://github.com/yii-starter-kit/yii2-starter-kit","label":"disclosure@vulncheck.com"},{"url":"https://github.com/yii-starter-kit/yii2-starter-kit/blob/cc2c451e8c959c7300b04efea597706a38609f58/common/config/web.php#L21","label":"disclosure@vulncheck.com"},{"url":"https://github.com/yii-starter-kit/yii2-starter-kit/issues/797","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/yii2-starter-kit-through-4.2.0-debug-and-gii-module-exposure","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-30T19:13:17.145317Z"},"ingestedAt":"2026-09-30T18:17:24.547Z","slug":"CVE-2026-103475","body":"## Overview\n\nyii2-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}