User Enumeration Vulnerability in Passkey Authentication for Joomla
CVE-2025-54477

5.3MEDIUM

Key Information:

Vendor

Joomla
Status
Joomla! Cms
Vendor
CVE Published:
30 September 2025

What is CVE-2025-54477?

A vulnerability exists in Joomla's passkey authentication method due to inadequate handling of authentication requests. This flaw allows attackers to perform user enumeration, enabling them to determine valid usernames by analyzing the server's responses to authentication attempts. This security issue could lead to further exploitation, making it crucial for Joomla users to address this vulnerability promptly to safeguard against potential attacks.

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Deploy the Patch

Affected Version(s)

Joomla! CMS 4.0.0-4.4.13

Joomla! CMS 5.0.0-5.3.3

References

https://developer.joomla.org/security-centre/1011-2025090...
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marco Schubert
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