CVE-2026-23480

UNKNOWN 0.0

Blinko: Low Privilege User Privilege Escalation - upsertUser Endpoint

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

2th

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.

CWE	CWE-288
Vendor	blinkospace
Product	blinko
Published	Mar 23, 2026
Last Updated	Mar 24, 2026

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Affected Versions

blinkospace / blinko

< 1.8.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/blinkospace/blinko/security/advisories/GHSA-r3mv-q7ww-86p6 github.com: https://github.com/blinkospace/blinko/commit/3afbdf486b6f371bdac5781dea6289749f2c4c03 github.com: https://github.com/blinkospace/blinko/releases/tag/1.8.4