CVE-2022-27925
Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 1 September 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. An authenticated user with administrator rights has the ability to upload arbitrary files to the system, leading to directory traversal.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 98.68% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 11 August 2022 · due 1 September 2022 · used in ransomware campaigns
- Weakness
- CWE-22
- Affected
- synacor/zimbra collaboration suite
- Source
- cve@mitre.org
EPSS 98.7% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://blog.zimbra.com/2022/08/authentication-bypass-in-mailboximportservlet-vulnerability/; https://nvd.nist.gov/vuln/detail/CVE-2022-27925
References
- http://packetstormsecurity.com/files/168146/Zimbra-Zip-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
- https://wiki.zimbra.com/wiki/Security_CenterVendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
- http://packetstormsecurity.com/files/168146/Zimbra-Zip-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
- https://wiki.zimbra.com/wiki/Security_CenterVendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27925US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.