The vulnerability stems from unescaped job names in tooltips. Jenkins plugins typically use Jelly templates for HTML rendering. The Radiator View's index.jelly would contain the logic to display job names in tooltips. Since the advisory explicitly mentions the full name isn't escaped, the most probable location is the template directly outputting ${job.fullName} without using Jenkins' escapeHtml() function or Jelly's built-in escaping mechanisms. This matches Jenkins XSS vulnerability patterns where user-controlled data (job names) is rendered without proper context-aware escaping.