A Protection Mechanism Failure issue was discovered in OSIsoft PI Vision versions 2017 and prior. The X-XSS-Protection response header is not set to block, allowing attempts at reflected cross-site scripting.
Conclusion & alert: CVE-2018-7504 is rated Moderate Risk (43.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.85%).Mandatory action: Review affected assets and schedule remediation.
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-2018-7504
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).