What is CVE-2025-54597?

CVE-2025-54597 is a high-severity vulnerability in Linuxserver Heimdall, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-07-27.

How severe is CVE-2025-54597?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Linuxserver Heimdall

CVE-2025-54597

LinuxServer.io Heimdall before 2.7.3 allows XSS via the q parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Linuxserver Heimdall — versions 0
Linuxserver Heimdall_application_dashboard

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Patch)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2025-54597?: CVE-2025-54597 is a high-severity vulnerability in Linuxserver Heimdall, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-07-27.
How severe is CVE-2025-54597?: High severity. CVSS v3 base score is 7.2 out of 10.