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TI-2021-04497 Aliases CVE-2021-21399

Unauthenticated SubSonic backend access in Ampache

Priority MEDIUM 42CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Ampache is a web based audio/video streaming application and file manager. Versions prior to 4.4.1 allow unauthenticated access to Ampache using the subsonic API. To successfully make the attack you must use a username that is not part of the site to bypass the auth checks. For more details and workaround guidance see the referenced GitHub security advisory.

Why it matters now

EPSS 0.01438 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed ampache (ampache): 4.4.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ampacheampachebefore 4.4.14.4.1Patch availableCNA
  • ampache Vendorampache Affected before 4.4.1 Fixed in 4.4.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ampache:ampache:*:*:*:*:*:*:*:*before 4.4.1Vulnerableampache
  • cpe:2.3:a:ampache:ampache:*:*:*:*:*:*:*:* Versions before 4.4.1 Vulnerable ·ampache

Remediation

  • Fix · CNA ampache (ampache) Fixed in 4.4.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21399

References

Exploit 1

  • TI-2023-00731 SQL Injection in ampache/ampache CVSS 3.1HIGH 8.8
  • TI-2022-04263 Unrestricted Upload of File with Dangerous Type in ampache/ampache CVSS 3.1HIGH 8.8
  • TI-2024-32095 Cross-Site Request Forgery in ampache CVSS 3.1MEDIUM 6.5
  • TI-2023-00573 Cross-site Scripting (XSS) - Reflected in ampache/ampache CVSS 3.1MEDIUM 6.1
  • TI-2024-31551 Ampache vulnerable to Stored XSS via Democratic Playlist Name CVSS 3.1MEDIUM 6.1
  • TI-2024-19055 Ampache Stored XSS CVSS 3.1MEDIUM 5.9
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences