CVE-2017-16856

low-risk

Published 2017-12-05

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.

Do I need to act?

0.19% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.1/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Confluence

Affected Vendors

Atlassian

References (4)

Third Party Advisory http://www.securityfocus.com/bid/102094

Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-54395

Third Party Advisory http://www.securityfocus.com/bid/102094

Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-54395

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low-risk

Severity 23/34 · High

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal