What is CVE-2025-21603?

CVE-2025-21603 is a medium-severity vulnerability in Planex Communications Inc. Mzk-Dp300n, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-01-08.

How severe is CVE-2025-21603?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Planex Communications Inc. Mzk-Dp300n

CVE-2025-21603

Cross-site scripting vulnerability exists in MZK-DP300N firmware versions 1.05 and earlier. If an attacker logs in to the affected product and manipulates the device settings, an arbitrary script may be executed on the logged-in user's web browser when accessing a crafted URL.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (21.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Planex Communications Inc. Mzk-dp300n — versions firmware versions 1.05 and earlier

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-21603?: CVE-2025-21603 is a medium-severity vulnerability in Planex Communications Inc. Mzk-Dp300n, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-01-08.
How severe is CVE-2025-21603?: Medium severity. CVSS v3 base score is 4.8 out of 10.