PT-2025-51253 · Frappe · Erpnext

An Chu + 1 · Published 2025-12-15 · Updated 2025-12-15 · CVE-2025-66435

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Frappe ERPNext versions through 15.89.0

Description A Server-Side Template Injection (SSTI) issue exists in the get contract template function. This function renders Jinja2 templates, specifically the contract terms field, using frappe.render template() with a user-supplied context (doc). Despite the use of a SandboxedEnvironment, dangerous globals like frappe.db.sql remain accessible through get safe globals(). An authenticated attacker who can create or modify a Contract Template can inject Jinja expressions into the contract terms field, potentially leading to server-side code execution within a limited context and the leakage of database information.

Recommendations Versions prior to 15.89.0 should be updated.

Exploit

Fix

SSRF

Code Injection

Weakness Enumeration

CWE-1336

CWE-918

CWE-94

Related Identifiers

CVE-2025-66435

Affected Products

Erpnext

References · 7

• 🔥 https://iamanc.github.io/post/erpnext-ssti-bug-2 · Exploit
• 🔥 https://notion.so/SSTI-bug-2-239e6086eadc80878e8fcc7b6c26a584?source=copy_link · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-66435 · Security Note
• https://osv.dev/vulnerability/CVE-2025-66435 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2000653631545049144 · Twitter Post
• https://twitter.com/CVEnew/status/2000617525663441230 · Twitter Post
• https://t.me/CVEtracker/39858 · Telegram Post