CVE-2026-23487Network attack vector

Superadmin token disclosure via faulty ownership check

Published Mar 23, 2026 · Updated Mar 23, 2026

IDOR in Blinko before 1.8.4 allows remote authenticated users to read a superadmin API token through the user.detail endpoint. The handler looks up the account selected by an input ID but tests the requested account's role instead of the caller's role, then returns that account's apiToken. Normal-user access and knowledge of the superadmin ID, usually 1, are required; the permanent token grants superadmin operations.

CVSS severity6.0
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Blinko before 1.8.4 allows remote authenticated users to read a superadmin API token through the user.detail endpoint. The handler looks up the account selected by an input ID but tests the requested account's role instead of the caller's role, then returns that account's apiToken. Normal-user access and knowledge of the superadmin ID, usually 1, are required; the permanent token grants superadmin operations.

The record

CVE
CVE-2026-23487
Published
Mar 23, 2026
Updated
Mar 23, 2026
Vendor
Blinko Space
Product
Blinko
Classifications
CWE-639, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Blinko Space · Blinkoversion=< 1.8.4

Published CVSS scores

6.0GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1528Steal Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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