CVE-2025-66376

Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability

Zimbra Collaboration Suite

Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.

5. Jan 2026

Ausgewertete Quellen

• Hersteller
  https://wiki.zimbra.com/wiki/Security_Center
• Hersteller
  https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66376
• CISA
  Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability
• NVD
  CVE-2025-66376