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.
Analyzing vulnerability vectors…