CVE-2023-43297Network attack vector

Notification spoofing via exposed channel access token

Published Oct 2, 2023 · Updated Sep 23, 2024

Credential exposure in the animal-art-lab mini-app for LINE 13.6.1 allows remote authenticated users to send crafted notifications. The mini-app returns its LINE channel access token to the client instead of keeping the credential on the server, enabling unauthorized API use. Exploitation requires access to LINE and opening the mini-app; the exposed token permits forged channel notifications, with no reported availability impact.

CVSS severity5.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in the animal-art-lab mini-app for LINE 13.6.1 allows remote authenticated users to send crafted notifications. The mini-app returns its LINE channel access token to the client instead of keeping the credential on the server, enabling unauthorized API use. Exploitation requires access to LINE and opening the mini-app; the exposed token permits forged channel notifications, with no reported availability impact.

The record

CVE
CVE-2023-43297
Published
Oct 2, 2023
Updated
Sep 23, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-924, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-924Improper Enforcement of Message Integrity During Transmission in a Communication Channel
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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