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.
CVE-2026-23480
HIGHNVD 8.88.8
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.8Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(low)
- EG Risk
- 44(Track)EG Risk 44/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
March 23, 2026
Last Modified
June 17, 2026
Advisory Details (3)
Auto-updated Jul 27, 2026Patch available. Sources: github_commit, github_release, github.
github Patch Available
Low Privilege User Privilege Escalation - upsertUser Endpoint · Advisory · blinkospace/blinko · GitHub
https://github.com/blinkospace/blinko/security/advisories/GHSA-r3mv-q7ww-86p6github_release Patch Available
Blinko 1.8.4
Patch available: blinkospace/blinko 1.8.4
https://github.com/blinkospace/blinko/releases/tag/1.8.4github_commit
commit 3afbdf486b6f (blinkospace/blinko)
Fix landed in blinkospace/blinko commit 3afbdf486b6f — awaiting tagged release
https://github.com/blinkospace/blinko/commit/3afbdf486b6f371bdac5781dea6289749f2c4c03Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 1× in last 7d / 1× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:32 UTCEG score recompute
Frequently asked(4)
What is CVE-2026-23480?
CVE-2026-23480 is a high vulnerability published on March 23, 2026. 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…
When was CVE-2026-23480 disclosed?
CVE-2026-23480 was first published in the National Vulnerability Database on March 23, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-23480?
CVE-2026-23480 has a CVSS v3 base score of 8.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-23480?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23480, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-23480
Is Your Infrastructure Affected by CVE-2026-23480?
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