What is CVE-2017-16856?

CVE-2017-16856 is a medium-severity vulnerability in Atlassian Confluence, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-05.

How severe is CVE-2017-16856?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Atlassian Confluence

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 restri…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (40.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Atlassian Confluence — versions All versions prior to version 6.5.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@atlassian.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
security@atlassian.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2017-16856?: CVE-2017-16856 is a medium-severity vulnerability in Atlassian Confluence, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-05.
How severe is CVE-2017-16856?: Medium severity. CVSS v3 base score is 6.1 out of 10.