CVE-2026-103476 [MEDIUM] – yii2-starter-kit through 4.2.0 fails to validate article publication status in the attachm

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 Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.