CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Mar 18, 2025

CVE-2023-34192

High

EPSS 89.4%CISA KEV

Synacor/Zimbra Collaboration Suite (ZCS)

Description

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting (XSS) vulnerability that allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.

EPSS — Exploit Probability

89.4%

Higher than 99.5% of all CVEs

Required Action

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://nvd.nist.gov/vuln/detail/CVE-2023-34192

Risk Assessment

HIGH

In CISA KEV

High EPSS

Details

Severity: High
EPSS: 89.4%
CISA KEV: Yes
Ransomware: Unknown
Articles: 0

Timeline

Published

Feb 25, 2025

Added to KEV

Feb 25, 2025

Remediation Due

Mar 18, 2025

Affected Product

Synacor

Zimbra Collaboration Suite (ZCS)

View all Synacor CVEs

External Links

NVD (NIST)CVE Details MITRE CVE