Vulnerability Report

CVE-2025-68645

CISA KEV Active

Title: Local File Inclusion in Zimbra Collaboration Webmail Classic UI

Arbitrary File Access

Proof Of Concept

PoC Available for CVE-2025-68645

CWE Category CWE-98

Published Date Dec 22, 2025

Modified Date Jan 23, 2026

Exploit Status Available

Score 8.8 CVSS v3.1

Exploit Probability (EPSS)

47.55%

Vulnerability Summary

CVE-2025-68645: 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.

Impacted Vendors

hummingbird 1

synacor 1

zimbra 2

Reference Links

https://wiki.zimbra.com/wiki/Security_Center https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity HIGH

8.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-68645 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Ashwesker/Ashwesker-CVE-2025-68645

View Code

GitHub https://github.com/chinaxploiter/CVE-2025-68645-PoC

View Code

GitHub https://github.com/MaxMnMl/zimbramail-CVE-2025-68645-poc

View Code

January 23, 2026 MODIFIED

Vulnerability data updated via NVD.

January 23, 2026 MODIFIED

Vulnerability data updated via NVD.

January 22, 2026 MODIFIED

Vulnerability data updated via NVD.

January 22, 2026 MODIFIED

Vulnerability data updated via NVD.

January 02, 2026 MODIFIED

Vulnerability data or affected products updated.

December 22, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.