Security Resilience

CVE-2023-39049

Youmart-Tokunaga Project Youmart-Tokunaga 13.6.1

Public PoC
Published
18 September 2023
Modified
09 July 2026
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0046 38th percentile
Risk Priority 51 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-39049 is a medium-severity Exposure of Resource to Wrong Sphere (CWE-668) vulnerability in Youmart-Tokunaga Project Youmart-Tokunaga. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 38th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An information leak in youmart-tokunaga v13.6.1 allows attackers to obtain the channel access token and send crafted messages.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-23205Shared CWE-668
CVE-2026-54727Shared CWE-668
CVE-2023-39056Shared CWE-668
CVE-2023-42547Shared CWE-668
CVE-2026-34538Shared CWE-668
CVE-2024-32473Shared CWE-668
CVE-2024-36033Shared CWE-668
CVE-2026-34217Shared CWE-668
CVE-2023-42551Shared CWE-668
CVE-2026-41369Shared CWE-668

Affected Assets

youmart-tokunaga project
youmart-tokunaga
13.6.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-668

Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.

addresses: CWE-668

The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.

addresses: CWE-668

The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.

addresses: CWE-668

Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.

addresses: CWE-668

Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.

addresses: CWE-668

Controlling internal connections prevents exposure of resources to unintended internal spheres.

addresses: CWE-668

Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.

addresses: CWE-668

The control prevents exposure of the media resource to the wrong security sphere.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-668, a class-level weakness. Rules are authored against its narrower children: CWE-427, CWE-552.

References