Simple Ajax Chat <= 20240216 - Unauthenticated Stored Cross-Site Scripting

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2024-1983
CVSS 7.2 (High)
Publicly Published March 26, 2024
Last Updated February 25, 2026
Researcher Vincent Fourcade (vinceMatsui) - Digitemis

Description

The Simple Ajax Chat – Add a Fast, Secure Chat Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the name field in all versions up to, and including, 20240216 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attacker to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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

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Vulnerability Details for Simple Ajax Chat – Add a Fast, Secure Chat Box

Software Type Plugin
Software Slug simple-ajax-chat (view on wordpress.org)
Patched? Yes
Remediation Update to version 20240223, or a newer patched version
Affected Version
  • <= 20240216
Patched Version
  • 20240223

Recent vulnerabilities in Simple Ajax Chat – Add a Fast, Secure Chat Box

# Title CVE ID CVSS Researchers Date
1 Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c' CVE-2026-2987 6.1 Kazuma Matsumoto March 12, 2026
2 Simple Ajax Chat <= 20251121 - Unauthenticated Information Exposure CVE-2026-3075 5.3 Jakub Herman February 17, 2026
3 Simple Ajax Chat – Add a Fast, Secure Chat Box <= 20240318 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2024-2470 4.4 Vincent Fourcade (vinceMatsui) May 14, 2024
4 Simple Ajax Chat <= 20231101 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2024-2956 4.4 Vincent Fourcade (vinceMatsui) March 26, 2024
5 Simple Ajax Chat <= 20220115 - Cross-Site Request Forgery CVE-2022-27850 5.4 R3N0 April 15, 2022
6 Simple Ajax Chat Plugin <= 20220115 - Sensitive Information Disclosure CVE-2022-27849 5.3 R3N0 April 15, 2022
7 Simple Ajax Chat <= 20220115 - Unauthenticated Stored Cross-Site Scripting CVE-2022-25610 5.4 Philippe Dourassov February 16, 2022

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