Frappe Framework Development Branch Incorrect Authorization via Jinja Template Preview Endpoint
Impact
Frappe Framework development builds contain an authorization flaw in the render_jinja_template endpoint that allows low-privileged users to render arbitrary Jinja templates by supplying raw template strings. Attackers with print permission on any document can execute arbitrary SELECT statements against unrelated tables, including reading password hashes from the __Auth table.
Source excerpt · VulnCheckAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
frappe · frappe
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 0a80046da32bb8976cd7854f551c179a4a06b1b3 to before 37d2eb59790633da01c741b950cc00ca3558c494 | affected |
Original source description
Frappe Framework development builds contain an authorization flaw in the render_jinja_template endpoint that allows low-privileged users to render arbitrary Jinja templates by supplying raw template strings. Attackers with print permission on any document can execute arbitrary SELECT statements against unrelated tables, including reading password hashes from the __Auth table.
References
- Patch github.com/frappe/frappe/pull/40710
- Patch github.com/frappe/frappe/commit/37d2eb59790633da01c741b950cc00ca3558c494
- Source reference github.com/frappe/frappe/blob/0a80046da32bb8976cd7854f551c179a4a06b1b3/frappe/utils/print_format_generator.py
- Source reference github.com/frappe/frappe
- Security advisory www.vulncheck.com/advisories/frappe-framework-development-branch-incorrect-authorization-via-jinja-template-preview-endpoint