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CVE Record

CVE-2023-39043: An information leak in YKC Tokushima_awayokocho Line v13.6.1 allows attackers to obtain the channel access...

An information leak in YKC Tokushima_awayokocho Line v13.6.1 allows attackers to obtain the channel access token and send crafted messages.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2023-39043 describes an information leak in YKC Tokushima_awayokocho Line v13.6.1 that can expose a channel access token. If exposed, an attacker could use that token to send crafted messages through the affected channel context.

Executive priority

Treat this as a focused credential-exposure risk, not a broadly scored infrastructure emergency. Prioritize token rotation and exposure review if the named Line component is used.

Technical view

The public record states that YKC Tokushima_awayokocho Line v13.6.1 leaks a channel access token, enabling crafted message sending. The bundle does not provide CVSS, CWE, patch status, detailed affected CPEs, or validated vendor remediation guidance.

Likely exposure

Exposure appears limited to environments using YKC Tokushima_awayokocho Line v13.6.1 or managing the related channel access token. The source bundle lists affected vendor and product metadata as unavailable.

Exploitation context

CISA KEV is false, and the provided sources do not claim active exploitation. The public description indicates potential unauthorized message sending if the channel token is obtained.

Researcher notes

Evidence is sparse: no CVSS, CWE, CPE, patch, or vendor advisory is included. Analysis should stay anchored to the stated token leak and avoid expanding affected scope without new sources.

Mitigation direction

  • Check vendor or maintainer guidance for fixed versions or configuration changes.
  • Rotate or revoke any potentially exposed channel access tokens.
  • Remove channel access tokens from public repositories, logs, and client-side assets.
  • Review token permissions and reduce scope where the platform allows it.
  • Monitor channel activity for unexpected or unauthorized messages.

Validation and detection

  • Inventory any use of YKC Tokushima_awayokocho Line v13.6.1.
  • Confirm whether channel access tokens are exposed in code, configuration, or logs.
  • Review message history for unexpected crafted or unauthorized messages.
  • Verify new tokens are active and old tokens are disabled.
  • Track the CVE record and referenced report for remediation updates.
Prepared
Confidence
low
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-39043 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.