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CVE-2025-54421

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

Published: Aug 18, 2025Updated: Aug 20, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.4%
Top 71.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-79CWE-80

Affected Products

namelessnamelessmc
On-prem
Web & CMS Plugins / forum-wiki
NamelessNamelessMC
On-prem
Web & CMS Plugins / forum-wiki
namelessmcoss-projectWeb & CMS Pluginsaka nameless, namelessmc/nameless

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/NamelessMC/Nameless/commit/56d35cff9ee944c061791ef478cabd2bed0223c4
github.com
https://github.com/NamelessMC/Nameless/security/advisories/GHSA-f5rm-w4mx-q7rx
github.com

Timeline

Published
Aug 18, 2025
Last Updated
Aug 20, 2025

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