CVE-2021-43633: Messaging Web Application Project Messaging Web Application

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.

Affected products

• Messaging Web Application Project Messaging Web Application: version 1.0 only

Published 2022-04-14. Last modified 2026-06-17.