Security readout for executives and security teams
Plain-English summary
CVE-2018-14425 is a persistent cross-site scripting issue in the Briefcase component of Zimbra Web Client. Affected Zimbra versions are 8.8.8 before Patch 7 and 8.8.9 before Patch 1. The public bundle does not provide CVSS scoring or evidence of active exploitation.
Executive priority
Treat this as a targeted hygiene item for any legacy Zimbra deployment. It is not KEV-listed in the supplied data, but persistent XSS in webmail can affect user trust and account security. Remediate affected versions during the next security maintenance window, faster for internet-facing systems.
Technical view
The CVE record describes stored XSS in Synacor Zimbra Collaboration Suite Zimbra Web Client Briefcase. The affected version ranges are ZWC 8.8.8 before 8.8.8 Patch 7 and 8.8.9 before 8.8.9 Patch 1. Public details in the bundle are limited; CWE, CVSS vector, and exploit mechanics are not provided.
Likely exposure
Exposure is most likely in organizations still running the named Zimbra Web Client versions, especially where webmail is internet-accessible. Systems on 8.8.8 Patch 7 or later, or 8.8.9 Patch 1 or later, are not described as affected by the provided source bundle.
Exploitation context
The bundle does not cite CISA KEV status or any source confirming active exploitation. Persistent XSS can create user-session risk when affected content is viewed, but the sources do not describe prerequisites, attack path, or observed abuse.
Researcher notes
The public bundle gives the affected component and fixed patch thresholds but lacks CVSS, CWE, proof-of-concept detail, and exploitation telemetry. Validation should focus on version evidence and vendor advisory alignment rather than speculative exploit testing.
Mitigation direction
- Confirm current Zimbra Collaboration Suite and Zimbra Web Client patch levels.
- Apply Zimbra 8.8.8 Patch 7 or 8.8.9 Patch 1 guidance where applicable.
- Review the Zimbra Security Advisories page for vendor-specific remediation details.
- Prioritize externally reachable Zimbra Web Client deployments for remediation review.
Validation and detection
- Inventory Zimbra Web Client deployments and record exact version and patch level.
- Check whether any deployment runs 8.8.8 before Patch 7 or 8.8.9 before Patch 1.
- Review vendor advisory notes for CVE-2018-14425 applicability.
- Verify post-remediation patch level through normal Zimbra administrative reporting.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-14425 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesCVE reference · x_refsource_MISC
- https://bugzilla.zimbra.com/show_bug.cgi?id=108970CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.