Client Invoicing by Sprout Invoices <= 19.9.6 - Authenticated Stored Cross-Site Scripting

4.8
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-24787
CVSS 4.8 (Medium)
Publicly Published October 18, 2021
Last Updated December 27, 2022
Researcher Dipak Panchal (th3.d1p4k)

Description

The Client Invoicing by Sprout Invoices plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 5.5 due to the plugin not sanitising and escaping some of its settings. This makes it possible for high privilege users to inject arbitrary web scripts in pages to perform attacks even when the unfiltered_html capability is disallowed.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for Sprout Invoices – Client Invoicing & Estimates

Software Type Plugin
Software Slug sprout-invoices (view on wordpress.org)
Patched? Yes
Remediation Update to version 19.9.7, or a newer patched version
Affected Version
  • < 19.9.7
Patched Version
  • 19.9.7

Recent vulnerabilities in Sprout Invoices – Client Invoicing & Estimates

# Title CVE ID CVSS Researchers Date
1 Sprout Invoices – Client Invoicing & Estimates <= 20.8.13 - Missing Authorization CVE-2026-57418 4.3 she11f July 8, 2026
2 Client Invoicing by Sprout Invoices <= 20.8.10 - Missing Authorization CVE-2026-39562 5.3 Bao - BlueRock March 19, 2026
3 Client Invoicing by Sprout Invoices <= 20.8.9 - Authenticated (Author+) Local File Inclusion CVE-2026-32401 7.5 daroo February 21, 2026
4 Client Invoicing by Sprout Invoices <= 20.8.8 - Missing Authorization CVE-2026-25364 5.3 Bao - BlueRock February 15, 2026
5 Client Invoicing by Sprout Invoices <= 20.8.7 - Missing Authorization CVE-2025-64229 4.3 Trương Hữu Phúc (truonghuuphuc) October 24, 2025
6 Client Invoicing by Sprout Invoices <= 20.8.7 - Unauthenticated PHP Object Injection CVE-2025-64227 8.1 Drew Webber (mcdruid) September 2, 2025
7 Client Invoicing by Sprout Invoices – Easy Estimates and Invoices <= 20.8.1 - Missing Authorization CVE-2025-24606 5.0 Trương Hữu Phúc (truonghuuphuc) December 22, 2024
8 Client Invoicing by Sprout Invoices <= 20.8.0 - Insecure Direct Object Reference CVE-2024-53819 5.3 Manab Jyoti Dowarah December 2, 2024
9 Sprout Invoices <= 20.5.3 - Sensitive Information Exposure 4.3 November 13, 2023
10 Client Invoicing by Sprout Invoices – Easy Estimates and Invoices for WordPress <= 9.3 - Missing Authorization 7.3 James Golovich February 9, 2016

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