Zimbra - LFI (CVE-2025-68645)

CVE-2025-68645 is a Local File Inclusion (LFI) vulnerability in the Webmail Classic UI of Zimbra Collaboration (ZCS) versions 10.0 and 10.1, stemming from improper input handling in the RestFilter servlet. This flaw allows unauthenticated remote attackers to exploit the /h/rest endpoint to include arbitrary files from the WebRoot directory, potentially leading to information disclosure, remote code execution, or further compromise of the affected system.

CrowdSec has been tracking this vulnerability and its exploits since 14th of January 2026.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2025-68645 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2025-68645 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2025-68645 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attackers exploit the /h/rest endpoint by supplying the javax.servlet.include.servlet_path parameter to include sensitive files such as /WEB-INF/web.xml, enabling local file inclusion attacks against Zimbra Collaboration servers.