GeoNetwork contains a reflected cross-site scripting vulnerability in its AngularJS-based error page. Based on the provided advisory, the issue is triggered via client-side template injection in reflected input, allowing attacker-controlled content from a crafted URL to be interpreted in the browser and executed as arbitrary JavaScript. The vulnerable condition affects GeoNetwork deployments prior to the fixed supported releases 4.2.15 and 4.4.10; the 3.x and 4.0.x branches are unmaintained and will not receive a fix.
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