# CVE-2025-68645: Zimbra - LFI

> Live exploitation tracking for CVE-2025-68645 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-68645

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 8.8
- **Public exploit available:** Yes
- **Affected products:** Synacor Zimbra
- **Weaknesses:** CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion'))
- **Tags:** mail

## Description

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.

## CrowdSec analysis

[CVE-2025-68645](https://euvd.enisa.europa.eu/vulnerability/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.

## Timeline

- 2025-12-22: CVE Published. CVE-2025-68645 is published to NVD.
- 2026-01-14: Rule Released. CrowdSec releases a rule to detect CVE-2025-68645 exploitation attempts against the CrowdSec Network.
- 2026-01-19: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2025-68645 for the first time.
- 2026-01-22: CISA KEV. CVE-2025-68645 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2026-02-12: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).

## References

- https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
- https://wiki.zimbra.com/wiki/Security_Center
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-68645.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-68645) follows observed exploitation activity for CVE-2025-68645. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.