4.8

CVE-2025-21603: planex communications inc. mzk-dp300n Cross-site Scripting

CVSS: 4.8v3.1MediumDeferred
Published 08-01-2025Last modified 08-01-2025
Open JSON

Vulnerability summary

CVE-2025-21603 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in planex communications inc. mzk-dp300n. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.7% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-01-2025
    PublishedVulnerability first disclosed.
  2. 08-01-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

+0.01 pp

From 0.29% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Planex communications inc.1 product

1 vendor · 1 product

References

2 links