CVE-2025-66376 POC (Proof-of-Concept)

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.

Published: 2026-01-05

CVSS: 7.2

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Download CVE-2025-66376 POC (Proof-of-Concept) here:

Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.

Check my portfolio here:

https://tlncglobal.com/poc-571-cve-2024-7593/

https://tlncglobal.com/poc-355-cve-2025-25062/