Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability (CVE-2018-6882)
Severity: medium · Patch status: patched · Since 2022-04-19 · CVE-2018-6882
Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that might allow remote attackers to inject arbitrary web script or HTML. CISA added CVE-2018-6882 to its Known Exploited Vulnerabilities catalog on Apr 19, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 10, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch