Zimbra - XSS (CVE-2022-27926)

CVE-2022-27926 is a reflected cross-site scripting (XSS) vulnerability affecting Zimbra Collaboration, specifically within the /public/launchNewWindow.jsp component. This flaw enables unauthenticated attackers to inject and execute arbitrary web scripts or HTML via crafted requests.

CrowdSec has been tracking this vulnerability and its exploits since 15th of December 2023.

CrowdSec network data shows that most actors exploiting CVE-2022-27926 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2022-27926 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2022-27926 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attackers typically focus on requests to the /public/launchNewWindow.jsp endpoint when attempting to leverage this vulnerability.