5.3

CVE-2025-54477: joomla! project joomla! cms Observable Discrepancy

CVSS: 5.3v3.1MediumDeferred
Published 30-09-2025Last modified 01-10-2025
Open JSON

Vulnerability summary

CVE-2025-54477 is a medium (CVSS 5.3) Observable Discrepancy vulnerability in joomla! project joomla! cms. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.8% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-09-2025
    PublishedVulnerability first disclosed.
  2. 01-10-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Joomla! project1 product

1 vendor · 1 product

References

1 links