CVE-2025-54421

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

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.

Affected

NamelessMC · Nameless

CVSS v3.1 NVD

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

CVSS v3.1 GITHUB

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.39% chance of exploitation in the next 30 days, 32nd percentile

Published

2025-08-18

Proof-of-concept exploits (1)

• NamelessMC/Nameless/security/advisories/GHSA-f5rm-w4mx-q7rx

Security advisories

• NamelessMC/Nameless/commit/56d35cff9ee944c061791ef478cabd2bed0223c4

References

• CVE Record
• NVD entry