CVE-2021-3279

MEDIUM

szchat 4 - Stored Cross-Site Scripting via Message Box

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-3279. PoCs published by rafaelchriss.

AI-analyzed exploit summary The repository contains only a README with a CVE reference and no exploit code or technical details. It is a placeholder with minimal content.

Description

sz.chat version 4 allows injection of web scripts and HTML in the message box.

Exploits (1)

nomisec STUB
by rafaelchriss · poc
https://github.com/rafaelchriss/CVE-2021-3279

The repository contains only a README with a CVE reference and no exploit code or technical details. It is a placeholder with minimal content.

Classification
Stub 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: unknown
No auth needed
mistral-large-3 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.youtube.com/watch?v=H9ttpjFVDgA

Scores

CVSS v3 6.1
EPSS 0.0084
EPSS Percentile 54.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
fortics/szchat 4
Published Jul 19, 2021
Tracked Since Feb 18, 2026