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 restriction on their scheme.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (56.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Atlassian Confluence — versions All versions prior to version 6.5.2
Weakness classification (CWE)
References
- jira.atlassian.com/browse/CONFSERVER-54395 (Issue Tracking, Vendor Advisory)
- www.securityfocus.com/bid/102094 (VDB Entry, Third Party Advisory, vdb-entry)
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.