CVE-2026-23480

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-288

Affected software

No affected versions have been published.

Timeline

Published
Mar 23, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-23480: High severity, CVSS 8.8 | Vulnix