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CVE Watch—

CVE-2023-37580

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

CVSS

—

No CVSS

EPSS

49.1%

p99

KEV

YES

Jul 27, 2023

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d

46.7%EPSS · 30 days49.1%

2026-09-172026-10-15

KEV catalog record

Product

Synacor / Zimbra Collaboration Suite (ZCS)

Vulnerability

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

Added to KEV

Jul 27, 2023

Remediate by

Aug 17, 2023

Known ransomware use

No

Summary description

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability impacting the confidentiality and integrity of data.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes

https://wiki.zimbra.com/wiki/Security_Center ; https://nvd.nist.gov/vuln/detail/CVE-2023-37580

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KEV—79Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability9d CVE-2022-413529.8 CRI

KEV—80Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability36d CVE-2022-370429.8 CRI

KEV—80Synacor Zimbra Collaboration Suite (ZCS) Authentication Bypass Vulnerability73d CVE-2022-279257.2 HIG

KEV—80Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability15d CVE-2022-279247.5 HIG

KEV—80Synacor Zimbra Collaboration Suite (ZCS) Command Injection Vulnerability14d