Medium 6.4Published Jul 7, 2026

CVE-2026-48958Joomla! Core - [20260712] - Incorrect Access Control in com_fields webservice endpoints

Updated under an hour ago (Oct 26, 2026, 9:23 AM ET)

Does this affect you?

It affects Joomla! Project Joomla! CMS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

An improper access check allows unauthorized users to create custom fields via webservices endpoints.

CVSS: 6.4 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Joomla
NVD analysis: Analyzed
Record last updated: Jul 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Joomla! Project Joomla! CMS joomla_project:joomla_cms (from the name)	4.0.0-5.4.6; 6.0.0-6.1.1	CNA record
joomla joomla! joomla:joomla!	from 4.0.0 before 5.4.7; from 6.0.0 before 6.1.2	NVD

References

https://developer.joomla.org/security-centre/1066-20260712-core-incorrect-access-control-in-com-fields-webservice-endpoints.htmlvendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.