Read the docs
TI-2018-13171 Aliases CVE-2018-18631GHSA-wjpq-8j8h-3392

mailboxd component in Synacor Zimbra Collaboration Suite 8.6, 8.7 before 8.7.11 Patch 7…

Priority LOW 29CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

mailboxd component in Synacor Zimbra Collaboration Suite 8.6, 8.7 before 8.7.11 Patch 7, and 8.8 before 8.8.10 Patch 2 has Persistent XSS.

Why it matters now

EPSS 0.00988 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*8.7.0 to before 8.7.11; 8.8.0 to before 8.8.9VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.6.0:*:*:*:*:*:*:*8.6.0VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:-:*:*:*:*:*:*8.7.11VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p1:*:*:*:*:*:*8.7.11 p1VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p2:*:*:*:*:*:*8.7.11 p2VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p3:*:*:*:*:*:*8.7.11 p3VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p4:*:*:*:*:*:*8.7.11 p4VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p5:*:*:*:*:*:*8.7.11 p5VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p6:*:*:*:*:*:*8.7.11 p6VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:-:*:*:*:*:*:*8.8.9VulnerableSynacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* Versions 8.7.0 to before 8.7.11; 8.8.0 to before 8.8.9 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.6.0:*:*:*:*:*:*:* Versions 8.6.0 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:-:*:*:*:*:*:* Versions 8.7.11 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p1:*:*:*:*:*:* Versions 8.7.11 p1 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p2:*:*:*:*:*:* Versions 8.7.11 p2 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p3:*:*:*:*:*:* Versions 8.7.11 p3 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p4:*:*:*:*:*:* Versions 8.7.11 p4 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p5:*:*:*:*:*:* Versions 8.7.11 p5 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11:p6:*:*:*:*:*:* Versions 8.7.11 p6 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:-:*:*:*:*:*:* Versions 8.8.9 Vulnerable ·Synacor
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p1:*:*:*:*:*:*8.8.9 p1VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p2:*:*:*:*:*:*8.8.9 p2VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p3:*:*:*:*:*:*8.8.9 p3VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p4:*:*:*:*:*:*8.8.9 p4VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p6:*:*:*:*:*:*8.8.9 p6VulnerableSynacor
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.10:-:*:*:*:*:*:*8.8.10VulnerableSynacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p1:*:*:*:*:*:* Versions 8.8.9 p1 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p2:*:*:*:*:*:* Versions 8.8.9 p2 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p3:*:*:*:*:*:* Versions 8.8.9 p3 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p4:*:*:*:*:*:* Versions 8.8.9 p4 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9:p6:*:*:*:*:*:* Versions 8.8.9 p6 Vulnerable ·Synacor
  • cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.10:-:*:*:*:*:*:* Versions 8.8.10 Vulnerable ·Synacor

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-18631
  2. 2026-10-03 Alias added: GHSA-wjpq-8j8h-3392

References

Advisory 2

  • TI-2024-30554 The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before… KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-19841 An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-17239 Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0 has mboximport functionality that… KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-10792 Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-06312 Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is… KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-07076 mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an… KEVCVSS 3.1CRITICAL 9.8
See all 96 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences