CVE-2017-16856 json
The RSS Feed macro in Atlassian Confluence before version 6.5.2 allows remote attackers to inject arbitrary HTML or JavaScript via cross si…
published 2017-12-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8030
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- atlassian confluence 6.5.2
Exploit prediction
0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Atlassian Confluence
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
jira.atlassian.com
/browse/CONFSERVER-54395
issue-tracking, vendor-advisory
-
securityfocus.com
/bid/102094
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-16856
- NVD CVE-2017-16856
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.