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.
https://www.vulncheck.com/advisories/mayswind-ezbookkeeping-before-2.0.0-totp-replay-attack
https://github.com/mayswind/ezbookkeeping/security/advisories/GHSA-p6qr-48g6-97q3
https://github.com/mayswind/ezbookkeeping/releases/tag/v2.0.0
https://github.com/mayswind/ezbookkeeping/commit/3dd6286d7a3ab0f980a6d36339b9c9c4df9467e4
Published: 2026-09-20
Updated: 2026-09-20
Base Score: 7.1
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 6.8
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Severity: Medium
Base Score: 7.6
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: High