Cross-Site Scripting in snekserve

Description

All versions of snekserve are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize filenames, allowing attackers to execute arbitrary JavaScript in the victim’s browser through files with names containing malicious code.

Recommendation

No fix is available yet. Followings are affected versions:

• >= 0.0.0

References

• GHSA-hv4w-jhcj-6wfw
• www.npmjs.com
• CWE-79
• OWASP 2021-A3

Related Issues

• Vditor Cross-site Scripting vulnerability - CVE-2021-32855
• Bootstrap Cross-Site Scripting (XSS) vulnerability - CVE-2024-6531
• @dependencytrack/frontend vulnerable to Persistent Cross-Site-Scripting via Vulnerability Details - CVE-2022-39350
• CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package - CVE-2025-58064

Tags:

npm

snekserve