CVE-2026-93634

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

CVE-2026-93634 Zimbra Collaboration Suite Cross-Account Authorization Bypass via Forged Shared-File Records

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

CVE-2026-93634 Zimbra Collaboration Suite Cross-Account Authorization Bypass via Forged Shared-File Records

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

CVE-2026-93634

A cross-account authorization vulnerability exists in Zimbra Collaboration Suite (ZCS) versions 10.1.16 and 10.1.20 . The flaw allows an authenticated user to insert forged shared-file records into another user's mailbox via the FileSharedWithMeRequest request. The system fails to validate a corr...

CVE-2026-93634 Zimbra Collaboration Suite Cross-Account Authorization Bypass via Forged Shared-File Records

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

EUVD-2026-108974

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

PT-2026-122115

A cross-account authorization vulnerability in Zimbra Collaboration Suite ZCS allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file...

Zimbra Collaboration Suite authorization issue vulnerability

Zimbra Collaboration Suite versions 10.1.20 and earlier contain an authorization issue vulnerability. This vulnerability arises because FileSharedWithMeRequest requests bypass the authorization check for delegated accounts. Without proper validation of document sharing, the system accepts file...