PT-2022-11875 · Unknown · Sourcecodester Messaging Web Application

Published 2022-04-14 · Updated 2022-04-21 · CVE-2021-43633

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Sourcecodester Messaging Web Application version 1.0

Description The issue allows for stored XSS attacks. If a sender inserts valid scripts into the chat, the script will be executed on the receiver's chat.

Recommendations For Sourcecodester Messaging Web Application version 1.0, consider implementing input validation and sanitization to prevent the insertion of malicious scripts into the chat. As a temporary workaround, restrict the ability to insert scripts into the chat to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-43633

Affected Products

Sourcecodester Messaging Web Application

References · 7

• 🔥 https://medium.com/@shaunwhorton/how-i-found-two-different-xss-vulnerabilities-a491144e8494 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-43633 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43633 · Vendor Advisory
• https://sourcecodester.com/php/14996/messaging-web-application-phpoop-free-source-code.html · Note
• https://t.me/cvenotify/28914 · Telegram Post
• https://medium.com/%40shaunwhorton/how-i-found-two-different-xss-vulnerabilities-a491144e8494 · Note
• https://t.me/cibsecurity/40770 · Telegram Post