Client Invoicing by Sprout Invoices – Easy Estimates and Invoices for WordPress <= 9.3 - Missing Authorization
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Sprout Invoices – Client Invoicing & Estimates | <= 9.3 | 9.4 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-862- Platform
- WordPress
- Package
Sprout Invoices – Client Invoicing & Estimates- Disclosed
- 09.02.2016
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 5cdbd5fd-bb12-4202-b6c7-f314ad8987f5 - Wordfence Intelligence
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Sprout Invoices – Client Invoicing & Estimates
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 13
- First → latest
- 02.2016 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 10
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 2
- 2025: 2
- 2026: 6
earlier: 1
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Client Invoicing by Sprout Invoices – Easy Estimates and Invoices for WordPress <= 9.3 - Missing Authorization this entry
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