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BleepingComputerOver 10,000 Zimbra servers vulnerable to ongoing XSS attacks

Exploited
First published (updated )
News
BleepingComputer

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability

Risk 65
Severity
7.2
Exploited
First published (updated )
CVE-2025-66376

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) PHP Remote File Inclusion Vulnerability

Risk 95
Severity
8.8
Exploited
First published (updated )
CVE-2025-68645

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

Risk 65
Severity
6.1
Exploited
First published (updated )
CVE-2025-48700

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

Risk 65
Severity
5.4
Exploited
EPSS
0.03%
First published (updated )
CVE-2025-27915
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Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability

Risk 100
Severity
10
Exploited
First published (updated )
CVE-2024-45519

Zimbra ZimbraZimbra Collaboration (ZCS) Cross-Site Scripting (XSS) Vulnerability

Risk 65
Severity
6.1
Exploited
Zeroday
First published (updated )
CVE-2023-37580

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability

Risk 89
Severity
9
Exploited
First published (updated )
CVE-2023-34192

Synacor Zimbra Collaboration SuiteZimbra Collaboration (ZCS) Arbitrary File Upload Vulnerability

Risk 99
Severity
9.8
Exploited
First published (updated )
CVE-2022-41352

Synacor Zimbra Collaboration SuiteZimbra Collaboration (ZCS) Authentication Bypass Vulnerability

Risk 99
Severity
9.8
Exploited
First published (updated )
CVE-2022-37042
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Synacor Zimbra Collaboration SuiteZimbra Collaboration (ZCS) Cross-Site Scripting (XSS) Vulnerability

Risk 65
Severity
6.1
Exploited
Zeroday
First published (updated )
CVE-2022-27926

Synacor Zimbra Collaboration SuiteZimbra Collaboration (ZCS) Arbitrary File Upload Vulnerability

Risk 80
Severity
7.2
Exploited
First published (updated )
CVE-2022-27925

Synacor Zimbra Collaboration SuiteZimbra Collaboration (ZCS) Command Injection Vulnerability

Risk 65
Severity
7.5
Exploited
First published (updated )
CVE-2022-27924

Zimbra CollaborationZimbra Webmail Cross-Site Scripting Vulnerability

Risk 65
Severity
6.1
Exploited
Zeroday
First published (updated )
CVE-2022-24682

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability

Risk 99
Severity
9.8
Exploited
First published (updated )
CVE-2020-7796
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Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration (ZCS) Improper Restriction of XML External Entity Reference

Risk 99
Severity
9.8
Exploited
First published (updated )
CVE-2019-9670

Synacor Zimbra Collaboration SuiteSynacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery (SSRF) Vulnerability

Risk 65
Severity
7.5
Exploited
First published (updated )
CVE-2019-9621

Synacor Zimbra Collaboration SuiteZimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability

Risk 65
Severity
6.1
Exploited
First published (updated )
CVE-2018-6882

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