CVE-2025-54477

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-09-30

Last updated on: 2025-10-02

Assigner: Joomla! Project

Description

Improper handling of authentication requests lead to a user enumeration vector in the passkey authentication method.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-09-30

Last Modified

2025-10-02

Generated

2026-07-06

AI Q&A

2025-09-30

EPSS Evaluated

2026-07-05

NVD

CVE-2025-54477

Affected Vendors & Products

Vendor	Product	Version / Range
joomla	joomla!	5.3.0
joomla	joomla!	4.0.0
joomla	joomla!	5.0.0
joomla	joomla!	4.4.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-203	The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Attack-Flow Graph

Executive Summary

CVE-2025-54477 is a vulnerability in Joomla! CMS where improper handling of authentication requests in the passkey authentication method allows an attacker to perform user enumeration. This means an attacker can identify valid usernames by analyzing the system's responses during authentication attempts. [1]

Impact Analysis

This vulnerability can impact you by allowing attackers to discover valid usernames on your Joomla! CMS site, which can be used as a first step in targeted attacks such as password guessing or phishing. Although the severity is low and the probability of exploitation is low, it still poses a moderate impact risk to user account security. [1]

Detection Guidance

This vulnerability can be detected by attempting authentication requests using the passkey authentication method and analyzing the system's responses for differences that reveal valid usernames. Specific commands are not provided, but testing authentication attempts and monitoring response variations can help identify user enumeration. [1]

Mitigation Strategies

To mitigate this vulnerability, immediately upgrade Joomla! CMS to versions 4.4.14 or 5.3.4 or later, where the issue has been fixed. [1]

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