CVE-2025-27915
Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
5.4
CVSS 3.1
4.0 %
EPSS (current)
2025-10-07
KEV addition
No
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: Synacor / Zimbra Collaboration Suite (ZCS)
Published: 2025-03-12 · Due (CISA): 2025-10-28
CWE: CWE-79 · EU list: no
Exploit references (metadata only)
| Source | Reference | Title | Date |
|---|---|---|---|
| nuclei | http/cves/2025/CVE-2025-27915.yaml | Zimbra - Cross-Site Scripting via ICS Files | – |
References only — no downloads or instructions.