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CVE-2025-54421

21
FAUCET Score

CVE-2025-54421 is a Cross-site Scripting (XSS) vulnerability affecting NamelessMC versions prior to 2.2.4, allowing authenticated attackers to inject malicious web scripts through the 'default_keywords' parameter. This medium-severity vulnerability (CVSS 5.4) requires user interaction and authenticated access, potentially leading to limited impact on confidentiality and integrity. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.4CPE matchmatch criteria
cpe:2.3:a:namelessmc:nameless:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 48th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / NamelessMC/Nameless/commit/56d35cff9ee944c061791ef478cabd2bed0223c4
Patch
github.com / NamelessMC/Nameless/security/advisories/GHSA-f5rm-w4mx-q7rx
ExploitVendor Advisory