A Local File Inclusion (LFI) vulnerability exists in the Webmail Classic UI of Zimbra Collaboration (ZCS) 10.0 and 10.1 because of improper handling of user-supplied request parameters in the RestFilter servlet. An unauthenticated remote attacker can craft requests to the /h/rest endpoint to influence internal request dispatching, allowing inclusion of arbitrary files from the WebRoot directory.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Zimbra Collaboration | — | Upgrade Zimbra Collaboration to the latest version | Jan 6, 2026 | Dec 22, 2025 |
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