CVE-2025-54421CWE-79CWE-80

NamelessMC allows Stored Cross Site Scripting (XSS) in SEO component

High · published August 18, 2025

CVSS v3.1
7.2
EPSS
0%
Percentile
32.3
In the wild
Unconfirmed
What it is

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. Cross-site scripting (XSS) vulnerability in NamelessMC before 2.2.4 allows remote authenticated attackers to inject arbitrary web script or HTML via the default_keywords crafted parameter. This vulnerability is fixed in 2.2.4.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00393 · 32.3th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Published
2025-08-18T16:01Z
EPSS history
Timeline
  • 18 AUG 16:01Z
    NamelessMC allows Stored Cross Site Scripting (XSS) in SEO component
    cvelistv5