CVE-2021-30203

A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.

CVSS v3.1 NVD

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

EPSS

0.60% chance of exploitation in the next 30 days, 47th percentile

Nuclei

high · CWE-79

Published

2023-06-27

Updated

2024-12-04

Proof-of-concept exploits (1)

• zyx0814/dzzoffice/issues/1834048★ · 2026-09-03

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-30203.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2021-40292
• CVE-2022-43340
• CVE-2024-29273
• CVE-2024-41376
• CVE-2026-90879