Zimbra XSS Zero-Day (CVE-2025-27915) Actively Exploited; CISA Adds to KEV Catalog Vulnerability Report Zimbra XSS Zero-Day (CVE-2025-27915) Actively Exploited; CISA Adds to KEV Catalog Ddos October 8, 2025 Read More Read more about Zimbra XSS Zero-Day (CVE-2025-27915) Actively Exploited; CISA Adds to KEV Catalog