Vulnerability Description
An SSTI (Server-Side Template Injection) vulnerability exists in the get_address_display method of Frappe ERPNext through 15.89.0. This function renders address templates using frappe.render_template() with a context derived from the address_dict parameter, which can be either a dictionary or a string referencing an Address document. Although ERPNext uses a custom Jinja2 SandboxedEnvironment, dangerous functions like frappe.db.sql remain accessible via get_safe_globals(). An authenticated attacker with permission to create or modify an Address Template can inject arbitrary Jinja expressions into the template field. By creating an Address document with a matching country, and then calling the get_address_display API with address_dict="address_name", the system will render the malicious template using attacker-controlled data. This leads to server-side code execution or database information disclosure.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Frappe | Erpnext | <= 15.89.0 |
Related Weaknesses (CWE)
References
- https://iamanc.github.io/post/erpnext-ssti-bug-4ExploitThird Party Advisory
- https://www.notion.so/SSTI-bug-4-239e6086eadc80aa9331fba874c674a5?source=copy_liExploitThird Party Advisory
FAQ
What is CVE-2025-66437?
CVE-2025-66437 is a vulnerability with a CVSS score of 8.8 (HIGH). An SSTI (Server-Side Template Injection) vulnerability exists in the get_address_display method of Frappe ERPNext through 15.89.0. This function renders address templates using frappe.render_template(...
How severe is CVE-2025-66437?
CVE-2025-66437 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66437?
Check the references section above for vendor advisories and patch information. Affected products include: Frappe Erpnext.