CVE-2026-87797
Received Received - Intake

Authentication Bypass in Sprout Invoices WordPress Plugin

Publication date: 2026-09-12

Last updated on: 2026-09-12

Assigner: WPScan

Description
The Sprout Invoices WordPress plugin before 20.8.16 does not perform a capability or ownership check before allowing a private note to be overwritten through one of its AJAX actions, allowing any authenticated user such as a subscriber to overwrite private notes on records belonging to other users.

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Meta Information

Published
2026-09-12
Last Modified
2026-09-12
Generated
2026-09-12
AI Q&A
2026-09-12
EPSS Evaluated
N/A
NVD
CVE-2026-87797
EUVD
EUVD-2026-76799

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sprout_invoices client_invoicing to 20.8.16 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects the Sprout Invoices WordPress plugin before version 20.8.16. It allows any authenticated user, including subscribers, to overwrite private notes on records belonging to other users due to a missing capability or ownership check in an AJAX action.

Detection Guidance

Check the installed version of the Sprout Invoices plugin using WordPress admin panel or via command line. Compare it against version 20.8.16 or later. Look for unauthorized modifications to private notes in records.

Impact Analysis

An attacker could modify or delete private notes on invoices or records, potentially altering sensitive information, disrupting workflows, or causing confusion in billing and communication.

Compliance Impact

This vulnerability could lead to unauthorized access and modification of sensitive data, which may violate compliance requirements for data integrity and confidentiality under standards like GDPR and HIPAA.

Mitigation Strategies

Update the Sprout Invoices plugin to version 20.8.16 or later immediately. If updating is not possible, consider disabling the plugin until an update is applied.

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