ShellCodeX Intelligence Brief
CRITICAL
Cybersecurity
Zimbra urges Classic Web Client users to fix a critical XSS bug
Source headline: Zimbra urges customers to patch critical web client XSS flaw
Threat level
Critical
Signal strength
80/100
Source confidence
1 source
Published
1 hour ago
Intelligence Summary
Zimbra has highlighted a critical cross-site scripting (XSS) flaw in its Classic Web Client. The issue impacts users accessing the Zimbra Collaboration suite through that web client. Zimbra recommends customers apply the appropriate patches as soon as possible. Successful exploitation could allow attackers to inject and execute malicious scripts in a victim’s browser session. Organizations using the Classic Web Client should verify their versions and remediate immediately to reduce exposure.
Recommended Action
Prioritize immediate review, validate exposure, and patch or mitigate affected systems.
Topics
Original reporting
BleepingComputer
Zimbra urges customers to patch critical web client XSS flaw
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