CVE-2017-16856

Name: CVE-2017-16856
Creator: NVD / NIST
Published: 2017-12-05T16:29:00.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.81%

Last modified Jun 17, 2026

CVE-2017-16856 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Atlassian	Confluence	< 6.5.2

References

http://www.securityfocus.com/bid/102094Third Party Advisory, VDB Entry
https://jira.atlassian.com/browse/CONFSERVER-54395Issue Tracking, Vendor Advisory
http://www.securityfocus.com/bid/102094Third Party Advisory, VDB Entry
https://jira.atlassian.com/browse/CONFSERVER-54395Issue Tracking, Vendor Advisory

Timeline

Published: Dec 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16856?

How severe is CVE-2017-16856?

Severity scoring for CVE-2017-16856 is pending analysis. The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16856?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16856?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST