What is CVE-2021-28803?

CVE-2021-28803 is a medium-severity vulnerability in Qnap Q\'center, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2021-07-01.

How severe is CVE-2021-28803?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Qnap Q\'center

CVE-2021-28803

This issue affects: QNAP Systems Inc. Q'center versions prior to 1.11.1004.

EPSS: 0.005 (36.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Qnap Q\'center
Qnap Systems Inc. Q'center — versions unspecified

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79 — Cross-site Scripting

References

security@qnapsecurity.com.tw (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-28803?: CVE-2021-28803 is a medium-severity vulnerability in Qnap Q\'center, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2021-07-01.
How severe is CVE-2021-28803?: Medium severity. CVSS v3 base score is 5.4 out of 10.