yii2-starter-kit through 4.2.0 Unauthorized File Download via attachment-download
yii2-starter-kit through 4.2.0 fails to validate article publication status in the attachment-download endpoint, allowing unauthenticated attackers to download files from draft articles. Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.
CVE-2026-103476
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-2026-103476
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-2026-103476
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #5627 · Revision 1
- Added to Heist Feed
- Publisher date