Simple Ajax Chat Stored Cross-Site Scripting Vulnerability

Vulnerability

A stored cross-site scripting vulnerability has been identified in the Simple Ajax Chat plugin for WordPress, affecting versions through 20260217. The issue arises from inadequate input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts. These scripts are executed when users access the compromised pages.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Remediation

Users are advised to update the Simple Ajax Chat plugin to version 20260301 or a newer patched version.

Added: Mar 12, 2026, 1:20 PM
Updated: Mar 12, 2026, 1:20 PM

Vulnerability Rating

Custom Algorithm
spread
2.2
impact
1.7
exploitability
7.2
remediation
7.7
relevance
3.8
threat
3.2
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.