Summary
Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.
- Vendor
- Synacor
- Product
- Zimbra Collaboration Suite (ZCS)
- Added to KEV
- Apr 20, 2026
- Remediation due
- Apr 23, 2026 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-79
- EPSS
- 1.7% as of Nov 12
In the news
- No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
- none recorded
References