Vulnerability · Published Aug 18, 2025 · Assigned by GitHub_M
CVE-2025-54421NamelessMC allows Stored Cross Site Scripting (XSS) in SEO component
High 7.2
In plain English
A high-severity cross-site scripting in Nameless from NamelessMC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.4%top 66.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NamelessMC | Nameless | < 2.2.4 |
Weakness: CWE-79, CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H