XSS in Namelessmc Nameless
CVE-2025-54421
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 d…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.001 (16.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Namelessmc Nameless — versions < 2.2.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/NamelessMC/Nameless/security/advisories/GHSA-f5rm-w4mx-q7rx (x_refsource_CONFIRM)
- https://github.com/NamelessMC/Nameless/commit/56d35cff9ee944c061791ef478cabd2bed0223c4 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-54421?
- CVE-2025-54421 is a high-severity vulnerability in Namelessmc Nameless, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-08-18.
- How severe is CVE-2025-54421?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2025-54421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.