blinkospace blinko up to 1.8.3 Post Comment /api/v1/comment/create authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in blinkospace blinko up to 1.8.3. Affected by this issue is some unknown functionality of the file /api/v1/comment/create of the component Post Comment Handler. Executing a manipulation can lead to authorization. This vulnerability is handled as CVE-2026-23488. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in blinkospace blinko up to 1.8.3 and classified as problematic. This vulnerability affects some unknown functionality of the file /api/v1/comment/create of the component Post Comment Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-23488 since 01/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 1.8.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 4623dd02bdeed768ffa6fea4cc2f8644cbb08c5e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: blinko 1.8.4
Patch: 4623dd02bdeed768ffa6fea4cc2f8644cbb08c5e

Timelineinfo

01/13/2026 CVE reserved
03/24/2026 +70 days Advisory disclosed
03/24/2026 +0 days VulDB entry created
03/28/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-84hm-vw62-472m
Status: Confirmed

CVE: CVE-2026-23488 (🔒)
GCVE (CVE): GCVE-0-2026-23488
GCVE (VulDB): GCVE-100-352606

Entryinfo

Created: 03/24/2026 02:35
Updated: 03/28/2026 05:46
Changes: 03/24/2026 02:35 (71), 03/28/2026 05:46 (11)
Complete: 🔍
Cache ID: 216::103

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