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CVE-2016-3409

22
FAUCET Score

CVE-2016-3409 is a Cross-Site Scripting (XSS) vulnerability affecting Zimbra Collaboration versions prior to 8.7.0. This flaw allows remote attackers to inject arbitrary web scripts or HTML through unspecified vectors, potentially leading to session hijacking or defacement. With a CVSS v3 score of 6.1 (Medium), it requires user interaction and has low impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.6.0CPE matchmatch criteria
cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.45%
Probability of exploitation in next 30 days
EPSS Percentile
70.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0145 is in the 83rd percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

wagopatch availablevia llm_extracted
Fixed in: ['8.6.0 Patch11', '8.7.0']

Vendor Advisories (1)

wagollm-wago-55e680681576a547LOW

XSS

References

wiki.zimbra.com / wiki/Zimbra_Releases/8.7.0
Release Notes
wiki.zimbra.com / wiki/Zimbra_Security_Advisories
Vendor Advisory
securityfocus.com / bid/95896