Cyber Resilience

CVE-2023-27527

High

Published: 10 May 2023

Published
10 May 2023
Modified
28 January 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0025 49.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-27527 is a high-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Touki-Kyoutaku-Online Shinseiyo Sogo Soft. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 49.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Shinseiyo Sogo Soft (7.9A) and earlier improperly restricts XML external entity references (XXE). By processing a specially crafted XML file, arbitrary files on the PC may be accessed by an attacker.

CWE(s)
CWE-611

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

touki-kyoutaku-online
shinseiyo sogo soft
≤ 7.9a

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.

CA-8 Penetration Testing
addresses: CWE-611

Penetration testing includes XML external entity payloads, detecting XXE vulnerabilities and enabling their mitigation.

SI-4 System Monitoring
addresses: CWE-611

Identifies XML external entity processing via monitoring of unusual file/network access or resource usage.

References