Known Exploited Vulnerability
6.1
MEDIUM
CVE-2018-6882
Zimbra Collaboration Suite (ZCS) Cross-Site Script - [Actively Exploited]
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.

INFO

Published Date :

March 27, 2018, 4:29 p.m.

Last Modified :

March 14, 2025, 8:05 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that might allow remote attackers to inject arbitrary web script or HTML.

Required Action :

Apply updates per vendor instructions.

Notes :

https://nvd.nist.gov/vuln/detail/CVE-2018-6882

Public PoC/Exploit Available at Github

CVE-2018-6882 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-6882 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Synacor zimbra_collaboration_suite

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 4 weeks, 2 days ago
564 stars 38 fork 38 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1277 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-6882 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-6882 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Mar. 14, 2025

    Action Type Old Value New Value
    Changed Reference Type CVE: http://www.securityfocus.com/archive/1/541891/100/0/threaded Types: Third Party Advisory, VDB Entry CVE: http://www.securityfocus.com/archive/1/541891/100/0/threaded Types: Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type MITRE: http://www.securityfocus.com/archive/1/541891/100/0/threaded Types: Third Party Advisory, VDB Entry MITRE: http://www.securityfocus.com/archive/1/541891/100/0/threaded Types: Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type CVE: https://bugzilla.zimbra.com/show_bug.cgi?id=108786 Types: Issue Tracking CVE: https://bugzilla.zimbra.com/show_bug.cgi?id=108786 Types: Issue Tracking, Permissions Required
    Changed Reference Type MITRE: https://bugzilla.zimbra.com/show_bug.cgi?id=108786 Types: Issue Tracking MITRE: https://bugzilla.zimbra.com/show_bug.cgi?id=108786 Types: Issue Tracking, Permissions Required
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Feb. 25, 2025

    Action Type Old Value New Value
    Changed Vulnerability Name Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 07, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Added CWE CWE-79
  • Modified Analysis by [email protected]

    Jan. 27, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2018/Mar/52
    Added Reference http://www.securityfocus.com/archive/1/541891/100/0/threaded
    Added Reference https://bugzilla.zimbra.com/show_bug.cgi?id=108786
    Added Reference https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7
    Added Reference https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
    Added Reference https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Mar. 05, 2019

    Action Type Old Value New Value
    Changed Reference Type http://www.securityfocus.com/archive/1/541891/100/0/threaded No Types Assigned http://www.securityfocus.com/archive/1/541891/100/0/threaded Third Party Advisory, VDB Entry
    Changed CPE Configuration OR *cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* versions up to (including) 8.7 *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.0:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.1:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.2:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.3:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.4:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.5:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.6:*:*:*:*:*:*:* OR *cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* versions up to (excluding) 8.7 *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7:-:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.0:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.1:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.2:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.3:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.4:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.5:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.6:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 09, 2018

    Action Type Old Value New Value
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/541891/100/0/threaded [Third Party Advisory, VDB Entry]
    Added Reference http://www.securityfocus.com/archive/1/541891/100/0/threaded [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 20, 2018

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type http://seclists.org/fulldisclosure/2018/Mar/52 No Types Assigned http://seclists.org/fulldisclosure/2018/Mar/52 Mailing List, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/archive/1/archive/1/541891/100/0/threaded No Types Assigned http://www.securityfocus.com/archive/1/archive/1/541891/100/0/threaded Third Party Advisory, VDB Entry
    Changed Reference Type https://bugzilla.zimbra.com/show_bug.cgi?id=108786 No Types Assigned https://bugzilla.zimbra.com/show_bug.cgi?id=108786 Issue Tracking
    Changed Reference Type https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7 No Types Assigned https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7 Permissions Required
    Changed Reference Type https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories No Types Assigned https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
    Changed Reference Type https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html No Types Assigned https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html Exploit, Third Party Advisory
    Added CWE CWE-79
    Added CPE Configuration OR *cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* versions up to (including) 8.7 *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.0:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.1:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.2:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.3:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.4:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.5:*:*:*:*:*:*:* *cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.6:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-6882 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-6882 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

65.60 }} -1.78%

score

0.98351

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: Jun. 07, 2025 17:45