CVE-2023-47363Network attack vector

Malicious notification delivery via leaked channel token

Published Nov 9, 2023 · Updated Aug 2, 2024

Channel access-token exposure in the F.B.P members component of Linecorp LINE 13.6.1 allows remote attackers to send malicious notifications. The CNA record and its unavailable research reference do not disclose where the component exposes the token or what operation leaks it. No authentication or user interaction is required; possession of the leaked token permits notification delivery but does not establish broader account access.

CVSS severity6.5
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Channel access-token exposure in the F.B.P members component of Linecorp LINE 13.6.1 allows remote attackers to send malicious notifications. The CNA record and its unavailable research reference do not disclose where the component exposes the token or what operation leaks it. No authentication or user interaction is required; possession of the leaked token permits notification delivery but does not establish broader account access.

The record

CVE
CVE-2023-47363
Published
Nov 9, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-326
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength

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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