mayswind ezBookkeeping before 2.0.0 fails to invalidate TOTP passcodes after use, allowing attackers to replay captured codes within the acceptance window. Attackers with stolen credentials can authenticate and reuse a captured passcode against multiple authorization attempts for approximately 90 seconds without detection.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
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