CVE-2022-24682 Synacor CVE debrief

Who should care

Organizations that operate Synacor Zimbra Collaborate Suite (ZCS), especially email and collaboration administrators, vulnerability management teams, and incident responders responsible for internet-facing or broadly accessible deployments.

Technical summary

The available source material identifies CVE-2022-24682 as a cross-site scripting vulnerability in Synacor Zimbra Collaborate Suite (ZCS). CISA’s KEV catalog marks it as known exploited and references vendor-directed updating as the required action. No additional technical details were provided in the supplied corpus.

Defensive priority

High. The CISA KEV listing means this issue should be treated as actively exploited and remediated promptly according to vendor guidance.

Recommended defensive actions

• Confirm whether Synacor Zimbra Collaborate Suite (ZCS) is deployed in your environment.
• Check the vendor’s update guidance for CVE-2022-24682 and apply the recommended updates as soon as possible.
• Prioritize internet-facing or user-accessible ZCS instances for immediate remediation.
• Review authentication, session, and application logs for unusual activity around ZCS.
• If patching is delayed, apply compensating controls to reduce exposure and restrict access where feasible.

Evidence notes

This debrief is based on the supplied CISA KEV source item and its metadata, which identify CVE-2022-24682 as a Synacor Zimbra Collaborate Suite (ZCS) cross-site scripting vulnerability, with dateAdded 2022-02-25, dueDate 2022-03-11, knownRansomwareCampaignUse set to Known, and requiredAction stated as applying updates per vendor instructions. The corpus did not include vendor advisory text, affected version ranges, exploit details, or CVSS data.

Official resources