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CVE-2026-23482— Blinko: Unauthorized Arbitrary File Read - /api/file/temp

Quick assessment

Affected
blinkospace blinko
Exploitation
Public or AI PoC available; prioritize validation
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 1.8.4之前版本存在路径遍历漏洞，该漏洞源于文件服务器端点未对temp/路径执行权限检查且未过滤路径遍历序列，可能导致未经授权的攻击者读取服务器上的任意文件。

AI Predicted 9.1 Difficulty: Trivial EPSS 1.52% · P74

Public Exploits 1

Nuclei · 1 CVE-2026-23482.yaml [template]
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I. Basic Information for CVE-2026-23482

Vulnerability Information
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Vulnerability Title
Blinko: Unauthorized Arbitrary File Read - /api/file/temp
Source: CVE Program / CVE List V5
Vulnerability Description
Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the file server endpoint does not perform permission checks on the temp/ path and does not filter path traversal sequences, allowing unauthorized attackers to read arbitrary files on the server. When scheduled backup tasks are enabled, attackers can read backup files to obtain all user notes and user TOKENS. This issue has been patched in version 1.8.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/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 1.8.4之前版本存在路径遍历漏洞，该漏洞源于文件服务器端点未对temp/路径执行权限检查且未过滤路径遍历序列，可能导致未经授权的攻击者读取服务器上的任意文件。
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 < 1.8.4 -

II. Public POCs for CVE-2026-23482

# POC Description Source Link Shenlong Link
1 Blinko < 1.8.4 contains a path traversal vulnerability caused by lack of permission checks and filtering on the temp/ path in the file server endpoint, letting unauthorized attackers read arbitrary files including backup files with user notes and tokens, exploit requires no special privileges. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-23482.yaml POC Details
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III. Intelligence Information for CVE-2026-23482

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Patches & Fixes for CVE-2026-23482 (1)

Vendor Pages for CVE-2026-23482 (1)

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

CVE-2026-23481 Blinko: Authenticated Arbitrary File Write - saveAdditionalDevFile
CVE-2026-23484 Blinko: Authenticated Arbitrary File Write - saveDevPlugin
CVE-2026-23480 Blinko: Low Privilege User Privilege Escalation - upsertUser Endpoint
CVE-2026-23483 Blinko: Unauthorized Arbitrary File Read - /plugins
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-2026-23482

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