CVE-2026-93627

An organizer authentication vulnerability in the email calendar processing of Zimbra Collaboration Suite ZCS allows an unauthenticated sender to cancel or modify an existing meeting in a recipient's calendar. Zimbra accepts iCalendar CANCEL and REQUEST components without verifying that the email...

CVE-2017-12363

A vulnerability in Cisco WebEx Meeting Server could allow an unauthenticated, remote attacker to modify the welcome message of a meeting on an affected system. The vulnerability is due to insufficient security settings on meetings. An attacker could exploit this vulnerability by modifying the...

CVE-2014-8036: Improper Input Validation

The outlookpa component in Cisco WebEx Meetings Server does not properly validate API input, which allows remote attackers to modify a meeting's invite list via a crafted URL, aka Bug ID CSCuj40254...