An SSTI (Server-Side Template Injection) vulnerability exists in the getcontracttemplate method of Frappe ERPNext through 15.89.0. The function renders attacker-controlled Jinja2 templates (contractterms) using frappe.rendertemplate() 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 getsafeglobals(). An authenticated attacker with access to create or modify a Contract Template can inject arbitrary Jinja expressions into the contract_terms field, resulting in server-side code execution within a restricted but still unsafe context. This vulnerability can be used to leak database information.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66435.json",
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "15.89.0"
}
],
"source": "DESCRIPTION"
}
]
}{
"cpe": "cpe:2.3:a:frappe:erpnext:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "15.89.0"
}
]
}