HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-103474 — yii2-starter-kit through 4.2.0 fails to validate file types in the backend stora...

·Source: NIST NVD

Updated:

Executive Summary

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.

Analysis

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. CVSS Score: 8.8. Published: 2026-09-30T18:18:17.647.

Indicators of Compromise (1)

CVE (1)
CVE-2026-103474
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 30, 2026. Verified by: NIST.

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