Simple Ajax Chat <= 20251121 - Unauthenticated Information Exposure

5.3
Exposure of Sensitive Information to an Unauthorized Actor
CVE CVE-2026-3075
CVSS 5.3 (Medium)
Publicly Published February 17, 2026
Last Updated February 25, 2026
Researcher Jakub Herman

Description

The Simple Ajax Chat – Add a Fast, Secure Chat Box plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 20251121. This makes it possible for unauthenticated attackers to extract sensitive user or configuration data.

References

Share

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 20260217, or a newer patched version
Affected Version
  • <= 20251121
Patched Version
  • 20260217

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

# Title CVE ID CVSS Researchers Date
1 Simple Ajax Chat <= 20260811 - Unauthenticated Stored Cross-Site Scripting CVE-2026-81825 7.2 HEI LAI SZE September 10, 2026
2 Simple Ajax Chat – Add a Fast, Secure Chat Box < 20260827 - Unauthenticated Stored Cross-Site Scripting CVE-2026-81807 7.2 Erwan LR September 3, 2026
3 Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c' CVE-2026-2987 6.1 Kazuma Matsumoto March 12, 2026
4 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
5 Simple Ajax Chat <= 20231101 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2024-2956 4.4 Vincent Fourcade (vinceMatsui) March 26, 2024
6 Simple Ajax Chat <= 20240216 - Unauthenticated Stored Cross-Site Scripting CVE-2024-1983 7.2 Vincent Fourcade (vinceMatsui) March 26, 2024
7 Simple Ajax Chat <= 20220115 - Cross-Site Request Forgery CVE-2022-27850 5.4 R3N0 April 15, 2022
8 Simple Ajax Chat Plugin <= 20220115 - Sensitive Information Disclosure CVE-2022-27849 5.3 R3N0 April 15, 2022
9 Simple Ajax Chat <= 20220115 - Unauthenticated Stored Cross-Site Scripting CVE-2022-25610 5.4 Philippe Dourassov February 16, 2022

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation