WordPress Plugin Vulnerabilities

Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification

Description

The plugin does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.

Proof of Concept

Affects Plugins

Fixed in 20260827

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Erwan LR (WPScan)
Submitter
Erwan LR (WPScan)
Verified
Yes

Timeline

Publicly Published
2026-08-31 (about 2 days ago)
Added
2026-08-31 (about 1 day ago)
Last Updated
2026-09-01 (about 8 hours ago)

Other