Security readout for executives and security teams
CVE-2017-16856 is an Atlassian Confluence RSS Feed macro XSS issue. Confluence versions before 6.5.2 could let a remote attacker inject HTML or JavaScript through RSS properties rendered as links. Business risk depends on whether vulnerable Confluence instances and RSS macro content are present. Exposure is likely limited to Atlassian Confluence deployments running versions before 6.5.2, especially where the RSS Feed macro is used or renders untrusted feed content. The provided sources do not identify affected hosting models beyond Atlassian Confluence. Treat this as a targeted remediation item for legacy Confluence. Prioritize internet-exposed or broadly accessible instances because XSS can affect user sessions and trusted internal workflows, but current sources do not support emergency exploitation claims. Mitigation focus: Upgrade affected Confluence instances to version 6.5.2 or later.; Review Atlassian CONFSERVER-54395 for vendor guidance and fixed-version details.; Reduce or disable RSS Feed macro use until vulnerable systems are upgraded..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2017-16856 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/CONFSERVER-54395CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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