CVE-2025-66434

{"id": "CVE-2025-66434", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-66434", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2025-12-17T15:51:50.610691Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2025-12-15T17:15:53.737", "references": [{"url": "https://iamanc.github.io/post/erpnext-ssti-bug-1", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.notion.so/SSTI-bug-1-239e6086eadc8096bfcfe90551a3a483?source=copy_link", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-94"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-1336"}]}], "descriptions": [{"lang": "en", "value": "An SSTI (Server-Side Template Injection) vulnerability exists in the get_dunning_letter_text method of Frappe ERPNext through 15.89.0. The function renders attacker-controlled Jinja2 templates (body_text) 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 configure Dunning Type and its child table Dunning Letter Text can inject arbitrary Jinja expressions, resulting in server-side code execution within a restricted but still unsafe context. This can leak database information."}, {"lang": "es", "value": "Una vulnerabilidad SSTI (Server-Side Template Injection) existe en el m\u00e9todo get_dunning_letter_text de Frappe ERPNext a trav\u00e9s de la versi\u00f3n 15.89.0. La funci\u00f3n renderiza plantillas Jinja2 controladas por el atacante (body_text) usando frappe.render_template() con un contexto proporcionado por el usuario (doc). Aunque Frappe usa un SandboxedEnvironment personalizado, varias globales peligrosas como frappe.db.sql todav\u00eda est\u00e1n disponibles en el contexto de ejecuci\u00f3n a trav\u00e9s de get_safe_globals(). Un atacante autenticado con acceso para configurar Dunning Type y su tabla hija Dunning Letter Text puede inyectar expresiones Jinja arbitrarias, lo que resulta en ejecuci\u00f3n de c\u00f3digo del lado del servidor dentro de un contexto restringido pero a\u00fan inseguro. Esto puede filtrar informaci\u00f3n de la base de datos."}], "lastModified": "2026-10-14T13:10:00.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:frappe:erpnext:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DAA2FB4F-48C5-4BA5-A15F-175B8A752866", "versionEndIncluding": "15.89.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}