CVE-2022-27925Used in ransomware
SY
Synacor Zimbra Collaboration Suite (ZCS)
Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
What it is
Synacor Zimbra Collaboration Suite (ZCS) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution.
What to do
Apply updates per vendor instructions.
Vendor notices and references
- blog.zimbra.com/2022/08/authentication-bypass-in-mailboximportservlet-vulnerability/
- nvd.nist.gov/vuln/detail/CVE-2022-27925
Description and required action as published by CISA. Full record at NVD.
Other Synacor entries on the list
- Zimbra Collaboration Suite (ZCS) Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability CVE-2026-73570 · Aug 21, 2026
- Zimbra Collaboration Suite (ZCS) Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability CVE-2025-48700 · Apr 20, 2026
- Zimbra Collaboration Suite (ZCS) Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability CVE-2025-66376 · Mar 18, 2026
- Zimbra Collaboration Suite Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability CVE-2020-7796 · Feb 17, 2026
- Zimbra Collaboration Suite (ZCS) Synacor Zimbra Collaboration Suite (ZCS) PHP Remote File Inclusion Vulnerability CVE-2025-68645 · Jan 22, 2026
- Zimbra Collaboration Suite (ZCS) Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability CVE-2025-27915 · Oct 7, 2025