The view review history resource in Atlassian Crucible before version 4.4.3 (the fixed version for 4.4.x) and 4.5.0 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability through the invited reviewers for a review.
Conclusion & alert: CVE-2017-18089 is rated Low Risk (38.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.68%).Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
Exploit prediction scoring system (EPSS) score for CVE-2017-18089
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).