Individual skill
exploiting-template-injection-vulnerabilities
Detects and exploits Server-Side Template Injection (SSTI) vulnerabilities across Jinja2, Twig, Freemarker, and other template engines to achieve remote code execution. Use when pentesting a web application that renders user input through a server-side template engine and you need to confirm and weaponize SSTI.
skills/exploiting-template-injection-vulnerabilities/SKILL.md
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- Network or broad shell
- Last checked
- Nov 9, 2026
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- Repository stars (not skill ratings)
- 35,849
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
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- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- penetration-testing Declared skill tag
- ssti Declared skill tag
- template-injection Declared skill tag
- rce Declared skill tag
- web-security Declared skill tag
- owasp Declared skill tag
- security Derived category
- testing Derived category
- security-application Derived category
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Read excerpt
# Exploiting Template Injection Vulnerabilities
## When to Use
- During authorized penetration tests when user input is rendered through a server-side template engine
- When testing error pages, email templates, PDF generators, or report builders that include user-supplied data
- For assessing applications that allow users to customize templates or notification messages
- When identifying potential SSTI in parameters that reflect arithmetic results (e.g., `{{7*7}}` returns `49`)
- During security assessments of CMS platforms, marketing tools, or any application with templating functionality
## Prerequisites
- **Authorization**: Written penetration testing agreement with RCE testing scope
- **Burp Suite Professional**: For intercepting and modifying template parameters