CVE-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 attachment.

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

30% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-25)

CISA KEV

listed 2022-04-19, due 2022-05-10, known ransomware use

CWE

CWE-79

Published

2018-03-27

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

Affected

• synacor:zimbra_collaboration_suite

References

• http://seclists.org/fulldisclosure/2018/Mar/52
• http://www.securityfocus.com/archive/1/541891/100/0/threaded
• https://bugzilla.zimbra.com/show_bug.cgi?id=108786
• https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7
• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

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