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CVE-2025-54421

Namelessmc Nameless cross-site scripting (XSS)

7.2 HIGHPublic exploitEPSS 0.39%
  1. Published18 Aug 2025

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Namelessmc Nameless< 2.2.4

Remediation

Fixed in
Namelessmc Nameless≥ 2.2.4

References

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Frequently asked

Is CVE-2025-54421 being actively exploited?

CVE-2025-54421 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2025-54421?

CVE-2025-54421 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2025-54421?

Affected products include Namelessmc Nameless.

How do I fix CVE-2025-54421?

Upgrade affected software to a fixed version, for example Namelessmc Nameless 2.2.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-54421 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.