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Vulnerabilities

Vulnerability · CVE-2025-54477

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

Published Sep 30, 2025 · catalog updated Oct 1, 2025 · Joomla! Project Joomla! CMS

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-54477. EPSS is 0.27%. Act only if a listed version of Joomla! Project Joomla! CMS is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Advisory link
Affected products
vendor Joomla! Project Joomla! CMS 5.0.0-5.3.3

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Joomla! Project Joomla! CMS 5.0.0-5.3.35.0.0-5.3.3

How to fix CVE-2025-54477

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-54477. EPSS is 0.27%. Act only if a listed version of Joomla! Project Joomla! CMS is installed.

Which versions are affected?

Compare what you have installed with Joomla! Project Joomla! CMS 5.0.0-5.3.3 5.0.0-5.3.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 30, 2025 · EUVD

    Detected

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

  2. Oct 1, 2025 · EUVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2025-54477

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-54477

    30-day exploitation probability 0.27%

    first.org
  • EUVDVulnerability recordEUVD-2025-31747

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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026