Vulnerability Report

CVE-2017-16856

Title: Atlassian Confluence Cross-Site Scripting (XSS)

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2017-16856.

CWE Category CWE-79

Published Date Dec 05, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 6.1 CVSS v3.0

Exploit Probability (EPSS)

0.81%

Vulnerability Summary

CVE-2017-16856: The RSS Feed macro in Atlassian Confluence before version 6.5.2 allows remote attackers to inject arbitrary HTML or JavaScript via cross site scripting (XSS) vulnerabilities in various rss properties which were used as links without restriction on their scheme.

Impacted Vendors

atlassian 1

mattermost 1

Reference Links

http://www.securityfocus.com/bid/102094 https://jira.atlassian.com/browse/CONFSERVER-54395 http://www.securityfocus.com/bid/102094 https://jira.atlassian.com/browse/CONFSERVER-54395

CVSS v3.0

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:3.0/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