CVE-2026-97078
Received Received - Intake

Unauthenticated IDOR in Client Invoicing by Sprout Invoices

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: Patchstack

Description
Unauthenticated Insecure Direct Object References (IDOR) in Client Invoicing by Sprout Invoices <= 20.8.17 versions.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-97078
EUVD
EUVD-2026-89896

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sprout_invoices client_invoicing to 20.8.17 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This is an Unauthenticated Insecure Direct Object Reference (IDOR) vulnerability in Client Invoicing by Sprout Invoices versions up to 20.8.17. IDOR occurs when an application exposes direct references to internal objects like files or database keys without proper access controls, allowing unauthorized users to access or manipulate data.

Detection Guidance

To detect this IDOR vulnerability in Client Invoicing by Sprout Invoices <= 20.8.17, inspect web application traffic for direct object references in URLs or API calls. Look for predictable numeric IDs or tokens in requests that may expose sensitive data without authentication. Check application logs for unauthorized access attempts or unusual data retrieval patterns.

Impact Analysis

An attacker could exploit this to access sensitive data such as invoices, client information, or financial records without authentication. This could lead to data leaks, financial fraud, or unauthorized modifications to invoicing data.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Immediately update Sprout Invoices to the latest version beyond 20.8.17 to patch the IDOR flaw. Implement proper authentication and authorization checks for all object references. Use indirect references like UUIDs instead of sequential IDs. Monitor network traffic for suspicious activity targeting invoicing endpoints.

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