CVE-2023-34192
CriticalActively exploited (CISA KEV)
Description
Cross Site Scripting vulnerability in Zimbra ZCS v.8.8.15 allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.
SeverityCritical
CVSS9.0
Exploit probability—
Product
Synacor Zimbra Collaboration Suite (ZCS)
PublishedJul 6, 2023
First seenJul 6, 2023
Added to KEVFeb 25, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Mar 18, 2025Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| synacor zimbra_collaboration_suite | 8.8.15 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.