A threat analyst notices the following URL while going through the HTTP logs.

XSS stands for cross-site scripting, which is a type of attack that injects malicious code into a web page that is then executed by the browser of a victim. The URL in the question contains a script tag that tries to execute a JavaScript code from an external source, which is a sign of XSS. Verified References: https://www.comptia.org/training/books/casp-cas-004-study-guide , https://owasp.org/www-community/attacks/xss/