CVE-2021-3279

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

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

0.84% chance of exploitation in the next 30 days, 55th percentile

Published

2021-07-19

Updated

2024-08-03

Proof-of-concept exploits (2)

• https://www.youtube.com/watch?v=H9ttpjFVDgA
• rafaelchriss/CVE-2021-32790★ · 2022-04-23

References

• CVE Record
• NVD entry

Related

• CVE-2025-64459
• CVE-2021-32789
• CVE-2021-32790
• CVE-2021-3278
• CVE-2021-32804
• CVE-2021-32751