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TI-2026-65705 Aliases CVE-2026-103476GHSA-75rg-6mfq-67qw

yii2-starter-kit through 4.2.0 Unauthorized File Download via attachment-download

Priority LOW 36CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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 Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0029 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
yii2-starter-kityii2-starter-kitup to 4.2.0—No fix listedCNA
  • yii2-starter-kit Vendoryii2-starter-kit Affected up to 4.2.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103476
  2. 2026-10-03 Alias added: GHSA-75rg-6mfq-67qw

References

Other 3

  • TI-2026-65704 yii2-starter-kit through 4.2.0 Debug and Gii Module Exposure CVSS 4.0CRITICAL 9.3
  • TI-2026-65703 yii2-starter-kit through 4.2.0 Unrestricted File Upload RCE CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences