High (8.8) in zohocorp servicedesk plus. EPSS 19% chance of exploitation in the next 30 days.
Zoho ManageEngine ServiceDesk 9.3 allows session hijacking and privilege escalation because an established guest session is automatically converted into an established administrator session when the guest user enters the administrator username, with an arbitrary incorrect password, in an mc/ login attempt within a different browser tab.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
19% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)