Vulnerability · Published Jul 27, 2025 · Assigned by mitre
CVE-2025-54597
High 7.2
In plain English
A high-severity cross-site scripting in Heimdall from LinuxServer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Nuclei
Official description
LinuxServer.io Heimdall before 2.7.3 allows XSS via the q parameter.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| LinuxServer | Heimdall | 0 – before 2.7.3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N