What is CVE-2026-23487?

CVE-2026-23487 is a medium-severity vulnerability in Blinko, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-23.

How severe is CVE-2026-23487?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Blinko

CVE-2026-23487

Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, there is an IDOR vulnerability where user.detail Endpoint Leaks the Superadmin Token. This issue has been patched in version 1.8.4.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-03-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Blinko
Blinkospace Blinko — versions < 1.8.4

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/blinkospace/blinko/security/advisories/GHSA-4ffv-78qx-9p66 (Vendor Advisory)
github.com/blinkospace/blinko/commit/bef6b770743e87c630db2d00d7049dabd96bfe85 (Patch)
github.com/blinkospace/blinko/releases/tag/1.8.4 (Release Notes)

Frequently asked questions

What is CVE-2026-23487?: CVE-2026-23487 is a medium-severity vulnerability in Blinko, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-23.
How severe is CVE-2026-23487?: Medium severity. CVSS v3 base score is 6.5 out of 10.