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

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Jul 27, 2023 · Catalog

   Detected

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

2. Jul 27, 2023 · CISA KEV

   Known exploited

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

3. Aug 17, 2023 · CISA KEV

   Remediation due

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

4. Jun 16, 2026 · Catalog

   Updated

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

Affected

• cpe synacor/zimbra collaboration suiteversion unspecified
• cpe synacor/zimbra collaboration suite8.8.15
• vendor Synacor Zimbra Collaboration Suite (ZCS)version unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2023-37580

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

  cisa.gov
• CVE.orgVulnerability recordCVE-2023-37580

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2023-37580

  30-day exploitation probability 49.1%

  first.org
• NIST NVDVulnerability recordCVE-2023-37580

  Zimbra Collaboration (ZCS) 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client.

  nvd.nist.gov

References

• Mailing List · openwall.com
• CISA note · nvd.nist.gov
• CISA note · wiki.zimbra.com
• Not Applicable · wiki.zimbra.com
• US Government Resource · cisa.gov