Database disclosure via unsafe contract template rendering
Published Dec 15, 2025 · Updated Dec 15, 2025
Server-side template injection in Frappe ERPNext 15.89.0 and earlier allows remote authenticated users to disclose database data. The get_contract_template method passes the attacker-controlled contract_terms field to frappe.render_template(), whose safe globals expose frappe.db.sql. Exploitation requires permission to create or modify a Contract Template and returns evaluated output, enabling database queries within the restricted Jinja context.
Summary
What happened
Server-side template injection in Frappe ERPNext 15.89.0 and earlier allows remote authenticated users to disclose database data. The get_contract_template method passes the attacker-controlled contract_terms field to frappe.render_template(), whose safe globals expose frappe.db.sql. Exploitation requires permission to create or modify a Contract Template and returns evaluated output, enabling database queries within the restricted Jinja context.
The record
- CVE
- CVE-2025-66435
- Published
- Dec 15, 2025
- Updated
- Dec 15, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-94, CWE-1336, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 15, 2025CVE publishedPublication date reported by the CVE source.
- Dec 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- ERPNext contract-template SSTI proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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