web-ssti

Server-Side Template Injection → RCE. Load when user input is rendered by a template engine: profile names in emails, custom reports, "hello {{name}}", error pages echoing math, Jinja2/Twig/Freemarker/Velocity/ERB/Handlebars. Signals: {{7*7}} returns 49, ${...} or #{...} evaluated, framework stack traces mentioning a templating engine.

Independent GitHub snapshot · Automated classification · Original documentation governs