yshop-crm through 2.1.3 fails to enforce authorization on the GET /admin-api/crm/operatelog/page endpoint, allowing any authenticated back-office user to access the installation-wide audit trail. Attackers can query the operation log to retrieve operator names, display nicknames, client IP addresses, User-Agent strings, request URLs, action details, and customer identifiers without proper permission checks.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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