HOMEVULNERABILITIESCVE-2026-23488
MEDIUM

CVE-2026-23488

CWE-639Published: March 23, 2026· Updated: Mar 24, 2026

5.3
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:9.0th

Official Description

Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the /api/v1/comment/create endpoint has an unauthorized access vulnerability, allowing attackers to post comments on any note (including private notes) without authorization, even if the note has not been publicly shared. The /api/v1/comment/list endpoint has the same issue, allowing unauthorized viewing of comments on all notes. This issue has been patched in version 1.8.4.

NVD Source

Technical Analysis

CVE-2026-23488 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

blinko1 product
blinko
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/blinkospace/blinko/commit/4623dd02bdeed768ffa6fea4cc2f8644cbb08c5e
ADVISORYhttps://github.com/blinkospace/blinko/security/advisories/GHSA-84hm-vw62-472m

All References (4)

→
https://github.com/blinkospace/blinko/commit/4623dd02bdeed768ffa6fea4cc2f8644cbb08c5ePatch
→
https://github.com/blinkospace/blinko/pull/1089Release Notes
→
https://github.com/blinkospace/blinko/releases/tag/1.8.4Release Notes
→
https://github.com/blinkospace/blinko/security/advisories/GHSA-84hm-vw62-472mVendor Advisory

Quick Facts

CVE IDCVE-2026-23488
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-639
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 23, 2026

Related CVEs (CWE-639)

CVE-2026-29200
9.9
CVE-2026-45552
9.9
CVE-2026-52782
9.9
CVE-2026-55255
KEV9.9
CVE-2026-41267
9.8
CVE-2018-25270
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-23488 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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