CyberRota Analysis
AI-GeneratedCyrus IMAP versions prior to 3.12.4 are vulnerable, allowing authenticated users with the maySetKeywords permission on shared mailboxes to alter the special-use role of those mailboxes. This could inadvertently lead to the sharing of more content than intended, as the mailbox may be reconfigured to perform roles like archived or snoozed. Organizations using affected versions should prioritize this vulnerability, particularly those managing shared mailboxes, to mitigate potential data exposure risks.
Original NVD Description
An issue was discovered in Cyrus IMAP before 3.12.4. Mailbox/set let a sharee change a special-use role on shared mailboxes. An authenticated user with maySetKeywords on another user's mailbox could change that mailbox's specialuse annotation. This could allow the sharee to change the shared mailbox to perform the archived, snoozed, or other role, which might cause mail mail to be written to the shared mailbox, sharing more content than intended. (This is likely to be an unusual situation, made more unusual because if the target already has an non-shared mailbox with that role, role duplication suppression will prevent the update.)