Description
An SSTI (Server-Side Template Injection) vulnerability exists in the get_terms_and_conditions method of Frappe ERPNext through 15.89.0. The function renders attacker-controlled Jinja2 templates (terms) using frappe.render_template() with a user-supplied context (doc). Although Frappe uses a custom SandboxedEnvironment, several dangerous globals such as frappe.db.sql are still available in the execution context via get_safe_globals(). An authenticated attacker with access to create or modify a Terms and Conditions document can inject arbitrary Jinja expressions into the terms field, resulting in server-side code execution within a restricted but still unsafe context. This vulnerability can be used to leak database information.
Affected products
frappe: erpnext
References2
- iamanc.github.io/post/erpnext-ssti-bug-3 ExploitThird Party Advisory
- www.notion.so/SSTI-bug-3-239e6086eadc8020aeecdaf123e32f3d?sourc… ExploitThird Party Advisory
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS — exploit probability
- 0% percentile: 27 · as of 11 November 2026
- CWE
- CWE-94CWE-1336
Could this be exploited in your environment?
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