Stored cross-site scripting in Zimbra Collaboration - CVE-2018-6882
Published: April 15, 2022 / Updated: April 19, 2022
Vulnerability identifier: #VU62356
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2018-6882
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
Vulnerability allows a remote attacker to perform Cross-site scripting attacks.
An input validation error exists in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS). A remote attacker can inject a specially crafted script into the Content-Location header in an email attachment and execute it when the attachment is opened.
Affected software
Zimbra Collaboration
How to mitigate CVE-2018-6882
Install update from vendor's website.
Zimbra Collaboration - addressed in versions 8.6.0 Patch 10, 8.7.11 Patch 1, 8.8.7
External References
- http://seclists.org/fulldisclosure/2018/Mar/52
- 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