How severe is CVE-2025-54117?

CVE-2025-54117 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-54117 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54117?

CVE-2025-54117 affects Namelessmc Nameless. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54117?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-54117 have an EU (EUVD) identifier?

Yes. CVE-2025-54117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25143.

When was CVE-2025-54117 published?

CVE-2025-54117 was published on 2025-08-18 and last updated on 2026-06-17.

CVE-2025-54117

CVE-2025-54117 is a critical-severity vulnerability in Namelessmc Nameless with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25143
Weakness: CWE-79
Affected product: Namelessmc Nameless
Published: 2025-08-18
Last modified: 2026-06-17

Description

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. Cross-site scripting (XSS) vulnerability in NamelessMC before 2.2.3 allows remote authenticated attackers to inject arbitrary web script or HTML via the dashboard text editor component. This vulnerability is fixed in 2.2.4.

Frequently asked questions

What is CVE-2025-54117?: NamelessMC is a free, easy to use & powerful website software for Minecraft servers. Cross-site scripting (XSS) vulnerability in NamelessMC before 2.2.3 allows remote authenticated attackers to inject arbitrary web script or HTML via the dashboard text editor component. This vulnerability is fixed in 2.2.4.
How severe is CVE-2025-54117?: CVE-2025-54117 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-54117 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54117?: CVE-2025-54117 affects Namelessmc Nameless. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54117?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-54117 have an EU (EUVD) identifier?: Yes. CVE-2025-54117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25143.
When was CVE-2025-54117 published?: CVE-2025-54117 was published on 2025-08-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:namelessmc:nameless:*:*:*:*:*:*:*:*

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