Medium severity · published Mar 27, 2018
CVE-2018-6882
Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
RansomwareIn wildKEV
6.1
CVSS
29.8%
EPSS
Yes
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)29.8% · higher than 98% of CVEs
Exploited in the wildYes
CISA KEVListed Apr 19, 2022
Federal remediation dueMay 10, 2022
Ransomware campaign useKnown
Affected products
Which versions
ZC
Zimbra Collaboration Suite · Synacor
before 8.7.0; 8.7.0; 8.8.0; 8.8.1; 8.8.2; 8.8.3; +3 more · source: NVD
ZC
Zimbra Collaboration Suite (ZCS) · Synacor
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6882
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6882
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
mailing-list
http://seclists.org/fulldisclosure/2018/Mar/52
x_refsource_MISC
https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html
x_refsource_CONFIRM
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7
x_refsource_CONFIRM
https://bugzilla.zimbra.com/show_bug.cgi?id=108786
mailing-list
http://www.securityfocus.com/archive/1/541891/100/0/threaded
x_refsource_CONFIRM
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
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