Client Invoicing by Sprout Invoices – Easy Estimates and Invoices for WordPress <= 9.3 - Missing Authorization

Missing Authorization
CVSS 7.3 (High)
Publicly Published February 9, 2016
Last Updated December 27, 2022
Researcher James Golovich


The Client Invoicing by Sprout Invoices – Easy Estimates and Invoices for WordPress plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 9.3. This is due to various missing capability & nonce checks on functions called via 'init' hooks. This makes it possible for unauthenticated trigger several functions which make it possible to upload arbitrary CSV files and access unreleased JSON API which can lead to createing/viewing the following: clients, payments, estimates, and invoices.



1 affected software package

Software Type Plugin
Software Slug sprout-invoices (view on
Patched? Yes
Remediation Update to version 9.4, or a newer patched version
Affected Version
  • <= 9.3
Patched Version
  • 9.4

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