CVE-2024-27443CISA KEVEPSS p97.1%

CVE-2024-27443Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability

Synacor / Zimbra Collaboration Suite (ZCS)

Description

Zimbra Collaboration contains a cross-site scripting (XSS) vulnerability in the CalendarInvite feature of the Zimbra webmail classic user interface. An attacker can exploit this vulnerability via an email message containing a crafted calendar header, leading to the execution of arbitrary JavaScript code.

Scoring

EPSS19.67% probability of exploitation · percentile 97.1% · 2026-06-19T12:03:05Z

CISA KEV entry

Added to KEV: 2025-05-19

(incoming)1

TypeTargetConfidenceTier
KEVEntrySynacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerabilitykev-cve-2024-274430%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Synacor Zimbra Collaborate Suite (ZCS) Cross-Site Scripting Vulnerability
CVE
Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
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Synacor Zimbra Collaboration Suite (ZCS) PHP Remote File Inclusion Vulnerability
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Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability
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Synacor Zimbra Collaboration Suite (ZCS) Authentication Bypass Vulnerability
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Synacor Zimbra Collaboration Suite (ZCS) Command Injection Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.