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Findings

CVE-2018-6882

Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability

Published Mar 27, 2018 · updated Oct 1, 2026 · synacor zimbra collaboration suite

Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 27, 2018 · Catalog

    Detected

    Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.

  2. Apr 19, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 10, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Oct 1, 2026 · Catalog

    Updated

    Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.

Required action

Apply updates per vendor instructions.

CISA due date May 10, 2022

Affected

  • cpe synacor/zimbra collaboration suiteversion unspecified
  • cpe synacor/zimbra collaboration suite8.7.0
  • cpe synacor/zimbra collaboration suite8.8.0
  • cpe synacor/zimbra collaboration suite8.8.1
  • cpe synacor/zimbra collaboration suite8.8.2
  • cpe synacor/zimbra collaboration suite8.8.3
  • cpe synacor/zimbra collaboration suite8.8.4
  • cpe synacor/zimbra collaboration suite8.8.5
  • vendor Synacor Zimbra Collaboration Suite (ZCS)version unspecified

Sources

  • CISA KEVCVE-2018-6882

    Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that might allow remote attackers to inject arbitrary web script or HTML.

    cisa.gov
  • CVE.orgCVE-2018-6882

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2018-6882

    30-day exploitation probability 29.8%

    first.org
  • NIST NVDCVE-2018-6882

    Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email

    nvd.nist.gov

References