High
yii2-starter-kit through 4.2.0 Unrestricted File Upload RCE
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.
Announced Group revision 1
Original source ↗CVE-2026-103474
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103474
yii2-starter-kit
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "yii2-starter-kit",
"product": "yii2-starter-kit",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "4.2.0"
}
],
"packageURL": "pkg:composer/yii2-starter-kit/yii2-starter-kit",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103474
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #4785 · Revision 1
- Added to Heist Feed
- Publisher date