The Image Gallery plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Conclusion & alert: CVE-2025-8400 is rated Moderate Risk (48.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.53%).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-2025-8400
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).