Synacor Zimbra Collaboration Suite (ZCS) PHP Remote File Inclusion Vulnerability

Synacor Zimbra Collaboration Suite (ZCS)

Synacor Zimbra Collaboration Suite (ZCS) contains a PHP remote file inclusion vulnerability that could allow for remote attackers to craft requests to the /h/rest endpoint to influence internal request dispatching, allowing inclusion of arbitrary files from the WebRoot directory. Added to CISA KEV on 2026-01-22 (federal deadline 2026-02-12).

First seen: 22 Jan 2026
Last update: 22 Jan 2026, 12:00 UTC
Identifiers: CVE-2025-68645
Source: CISA KEV
On the menu as: PHP
Enterprise apps

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Synacor Zimbra Collaboration Suite (ZCS) PHP Remote File Inclusion Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Synacor Zimbra Collaboration Suite (ZCS)
Ids: CVE-2025-68645

Synacor Zimbra Collaboration Suite (ZCS) contains a PHP remote file inclusion vulnerability that could allow for remote attackers to craft requests to the /h/rest endpoint to influence internal request dispatching, allowing inclusion of arbitrary files from the WebRoot directory. Added to CISA KEV on 2026-01-22 (federal deadline 2026-02-12).

## Steps
1. This touches infrastructure (erp). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2025-68645") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2025-68645 https://wiki.zimbra.com/wiki/Security_Center
https://pwned.coffee/i/synacor-zimbra-collaboration-suite-zcs-php-remote-file-i-cve-2025-68645

Sources

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