PT-2026-103499 · Yii2 Starter Kit · Yii2-Starter-Kit

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CVE-2026-103474

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Published

2026-09-30

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Updated

2026-09-30

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

Fix

Unrestricted File Upload

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Weakness Enumeration

Related Identifiers

CVE-2026-103474

Affected Products

Yii2-Starter-Kit