Medium severity5.4NVD Advisory· Published Apr 14, 2022· Updated Jun 17, 2026

CVE-2021-43633

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Messaging Web Application Project/Messaging Web Application
cpe:2.3:a:messaging_web_application_project:messaging_web_application:1.0:*:*:*:*:*:*:*
Sourcecodester/Messaging Web Applicationcpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 1.0

Patches

Vulnerability mechanics

References

www.sourcecodester.com/php/14996/messaging-web-application-phpoop-free-source-code.htmlnvdProductThird Party Advisory
medium.com/%40shaunwhorton/how-i-found-two-different-xss-vulnerabilities-a491144e8494nvd

News mentions

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cvss	0.351
epss	0.000
exploit	0.000
kev	0.000
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ransomware	0.000