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TI-2026-18917 Aliases CVE-2026-23484

Blinko: Authenticated Arbitrary File Write - saveDevPlugin

Priority LOW 24CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Blinko is an AI-powered card note-taking project. In versions from 1.8.3 and prior, the fileName parameter is not filtered, allowing path traversal to write files anywhere on the file system. Moreover, this interface only requires authProcedure (normal user), not superAdminAuthMiddleware. At time of publication, there are no publicly available patches.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00349 28th 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
No
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
blinkospaceblinkoup to 1.8.3—No fix listedCNA
  • blinko Vendorblinkospace Affected up to 1.8.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:*before 1.8.3Vulnerableblinkospace
  • cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:* Versions before 1.8.3 Vulnerable ·blinkospace

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23484

References

  • TI-2026-19240 Blinko: Admin RCE - MCP Server Command Injection CVSS 4.0HIGH 8.6
  • TI-2026-18915 Blinko: Unauthorized Arbitrary File Read - /api/file/temp CVSS 4.0HIGH 8.2
  • TI-2026-18919 Blinko: Unauthorized User Information Leak CVSS 4.0MEDIUM 6.9
  • TI-2026-18916 Blinko: Unauthorized Arbitrary File Read - /plugins CVSS 4.0MEDIUM 6.9
  • TI-2026-18921 Blinko: multiple interfaces in the comment feature allow unauthorized access CVSS 4.0MEDIUM 6.9
  • TI-2026-18918 Blinko: Unauthorized Path Traversal File Enumeration - music-metadata CVSS 4.0MEDIUM 6.9
See all 9 →

Sources

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