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CVE-2026-110774— Blinko through 1.8.8 Private Attachment Read via /api/file Route

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 版本 1.8.8 中存在一个 broken access control（访问控制损坏）漏洞，位于 路由中。由于所有权检查逻辑存在缺陷，攻击者可以读取其他用户的私有附件。攻击者通过构造符合“文件名基础部分加毫秒时间戳”模式的、属于其他用户的存储文件名，即可下载未共享的私有附件。

CVSS 5.3 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
blinkospace blinko ≤ 1.8.8 affected
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I. Basic Information for CVE-2026-110774

Vulnerability Information
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Vulnerability Title
Blinko through 1.8.8 Private Attachment Read via /api/file Route
Source: CVE Program / CVE List V5
Vulnerability Description
Blinko through 1.8.8 contains a broken access control vulnerability in the /api/file route that allows authenticated users to read other users' private attachments due to a flawed owner check. Attackers can supply another user's stored filename, following a basename plus millisecond-timestamp pattern, to download private, non-shared attachments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
blinkospace blinko 0 ~ 1.8.8 -

II. Public POCs for CVE-2026-110774

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III. Intelligence Information for CVE-2026-110774

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Proof of Concept for CVE-2026-110774 (1)

Other References for CVE-2026-110774 (3)

IV. Related Vulnerabilities

Same product: blinko
Same vendor: blinkospace
Same weakness: CWE-639

V. Comments for CVE-2026-110774

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