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    CVE-2026-23480

    Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, there is a privilege escalation vulnerability. The upsertUser endpoint has 3 issues: it is missing superAdminAuthMiddleware, any logged-in user can call it; the originalPassword is an optional parameter and if not provided password verification is skipped; there is no check for input.id === ctx.id (ownership verification). This could result in any authenticated user modifying other users' passwords, direct escalation to superadmin, and complete account takeover. This issue has been patched in version 1.8.4.

    Published:Mar 23, 2026
    Last Modified:Mar 25, 2026
    EPS:Mar 23, 2026
    EPSS Score:0.00014
    CVSS Score:8.8

    Affected Products

    Vendor
    Blinko
    Product
    Blinko
    Vendor
    Blinkospace
    Product
    Blinko

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-127 Directory Indexing
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

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    CVE-2026-23488 (CVSS 6.9) — Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the /api/v1/comment/create endpoint …
    CVE-2026-23487 (CVSS 6) — Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, there is an IDOR vulnerability where…
    CVE-2026-23486 (CVSS 6.9) — Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, a publicly accessible endpoint expos…
    CVE-2026-23481 (CVSS 5.3) — Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, there is an authenticated arbitrary …
    CVE-2026-23484 (CVSS 5.3) — Blinko is an AI-powered card note-taking project. In versions from 1.8.3 and prior, the fileName parameter is …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High