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CVE-2026-23484— Blinko: Authenticated Arbitrary File Write - saveDevPlugin

Quick assessment

Affected
blinkospace blinko
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Blinko是Blinko开源的一款基于人工智能的卡片式笔记应用，专为想要快速捕捉和整理转瞬即逝的灵感的用户而设计。 Blinko 1.8.3及之前版本存在路径遍历漏洞，该漏洞源于fileName参数未过滤，可能导致路径遍历以在文件系统任意位置写入文件，且该接口仅需普通用户权限。

AI Predicted 8.6 Difficulty: Easy EPSS 0.34% · P25
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I. Basic Information for CVE-2026-23484

Vulnerability Information
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Vulnerability Title
Blinko: Authenticated Arbitrary File Write - saveDevPlugin
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Blinko 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Blinko是Blinko开源的一款基于人工智能的卡片式笔记应用，专为想要快速捕捉和整理转瞬即逝的灵感的用户而设计。 Blinko 1.8.3及之前版本存在路径遍历漏洞，该漏洞源于fileName参数未过滤，可能导致路径遍历以在文件系统任意位置写入文件，且该接口仅需普通用户权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
blinkospace blinko <= 1.8.3 -

II. Public POCs for CVE-2026-23484

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III. Intelligence Information for CVE-2026-23484

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Vendor Advisories for CVE-2026-23484 (1)

Same Patch Batch · blinkospace · 2026-03-23 · 10 CVEs total

CVE-2026-23481 Blinko: Authenticated Arbitrary File Write - saveAdditionalDevFile
CVE-2026-23480 Blinko: Low Privilege User Privilege Escalation - upsertUser Endpoint
CVE-2026-23483 Blinko: Unauthorized Arbitrary File Read - /plugins
CVE-2026-23482 Blinko: Unauthorized Arbitrary File Read - /api/file/temp
CVE-2026-23488 Blinko: multiple interfaces in the comment feature allow unauthorized access
CVE-2026-23486 Blinko: Unauthorized User Information Leak
CVE-2026-23485 Blinko: Unauthorized Path Traversal File Enumeration - music-metadata
CVE-2026-23487 Blinko: IDOR - user.detail Endpoint Leaks Superadmin Token
CVE-2026-23882 Blinko: Admin RCE - MCP Server Command Injection

IV. Related Vulnerabilities

Same product: blinko
Same vendor: blinkospace
Same weakness: CWE-22

V. Comments for CVE-2026-23484

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