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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2018-6882
• 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
• https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html
• http://seclists.org/fulldisclosure/2018/Mar/52
• http://www.securityfocus.com/archive/1/541891/100/0/threaded