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CVE

CVE-2025-55204

muffon has One-click Remote Code Execution via XSS and Custom URL Handling
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CVE

CVE-2025-55204

muffon has One-click Remote Code Execution via XSS and Custom URL Handling

muffon is a cross-platform music streaming client for desktop. Versions prior to 2.3.0 have a one-click Remote Code Execution (RCE) vulnerability in. An attacker can exploit this issue by embedding a specially crafted muffon:// link on any website they control. When a victim visits the site or clicks the link, the browser triggers Muffon’s custom URL handler, causing the application to launch and process the URL. This leads to RCE on the victim's machine without further interaction. Version 2.3.0 patches the issue.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://drive.google.com/file/d/1eCPCQ6leuVM_vecfofFv04c0t9isCBqR/view?usp=sharing, https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55204.json, https://github.com/staniel359/muffon/releases/tag/v2.3.0, https://github.com/staniel359/muffon/security/advisories/GHSA-gc3f-gqph-522q, https://nvd.nist.gov/vuln/detail/CVE-2025-55204

Severity

8.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.8
EPSS Probability
0.00171%
EPSS Percentile
0.38829%
Introduced Version
0
Fix Available
72e0f53763baa609651a97e7a7827ea90ef562a8

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