VULNERABILITY INTELLIGENCE

CVE-2025-66376

CVSS score7.2 HIGH
EPSS probability20.23%
CISA KEVKnown exploited vulnerability
Published2026-01-05
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Known Exploited Vulnerability

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

Vendor / product: Synacor / Zimbra Collaboration Suite (ZCS)

Description

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.

Weakness classification

  • cve@mitre.org: CWE-79

Primary references