Vulnerability Report

CVE-2018-6882

CISA KEV Active

Title: Synacor Zimbra Collaboration Suite Cross-Site Scripting (XSS)

Cross-Site Scripting (XSS)

Proof Of Concept

No public PoC currently indexed for CVE-2018-6882.

CWE Category CWE-79
Published Date Mar 27, 2018
Modified Date Nov 04, 2025
Exploit Status Not Found
Score 6.1 CVSS v3.1
Exploit Probability (EPSS)
77.02%

Vulnerability Summary

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.

Impacted Vendors

S
synacor 1
Z
zimbra 1

Reference Links

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 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 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 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-6882 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.