CVE-2025-68645

high-risk
Published 2025-12-22

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.

Do I need to act?

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50.1% chance of exploitation in next 30 days
EPSS score — higher than 50% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Synacor

References (3)

Release Notes https://wiki.zimbra.com/wiki/Security_Center
Product https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...
60
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 25/34 · High
Exposure 5/34 · Minimal