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CVE-2026-102458 – Missing Authentication / Plaintext Password Disclosure – Digiwin EasyFlow .NET (V6

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Summary

CVE-2026-102458 is a missing authentication vulnerability (CWE-306) in Digiwin’s EasyFlow .NET workflow automation platform. An unauthenticated remote attacker can query a specific API endpoint to retrieve other users’ passwords in plaintext, fully compromising account confidentiality. The flaw carries a Critical severity rating (CVSS 9.3–9.8 depending on scoring version).

Technical details

  • Root cause: A specific API in EasyFlow .NET fails to enforce authentication/authorization checks before returning user credential data.
  • Trigger conditions: No authentication or user interaction is required; the attacker only needs network access to the exposed API endpoint.
  • Attack vector: Network — the vulnerable API is reachable over HTTP(S) without any prior session or credentials.
  • Impact: Disclosure of other users’ plaintext passwords, enabling account takeover and further lateral movement within the affected environment.

Affected software

  • Digiwin EasyFlow .NET V6.1.x and earlier
  • Digiwin EasyFlow .NET V6.6 through V6.6.19
  • Digiwin EasyFlow .NET V8.1 through V8.1.5

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical) — Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVSS v4.0 Base Score: 9.3 (Critical) — Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Mitigation and recommended actions

  • Immediate: Upgrade to the Digiwin EasyFlow .NET version released after April 17, 2026, which contains the fix for this issue.
  • If patching is not immediately possible: Restrict network access to the EasyFlow .NET application to trusted internal networks only, and monitor for anomalous requests to authentication-related APIs. Force a password reset for all users once the patch has been applied, as previously exposed credentials should be considered compromised.

References

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