zimbra collaboration suite

The Zimbra Collaboration Suite tag on WindowsForum.com covers security vulnerabilities and active exploitation threats affecting this email and collaboration platform. Discussions focus on CISA's addition of Zimbra cross-site scripting flaws, such as CVE-2025-66376, to the Known Exploited Vulnerabilities catalog. Topics include the urgency of patching under Binding Operational Directive 22-01, the risks of unpatched Zimbra instances in enterprise environments, and broader implications for Windows users managing hybrid or self-hosted email systems. Recurring themes involve vulnerability management, active exploitation evidence, and the importance of timely updates to mitigate attacks on messaging platforms.