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Vulnerability record · CVE-2026-48904 · published 26 May 2026

CVE-2026-48904: Joomla\! improper access control vulnerability

Joomla · Joomla\!

An improper access check allows privelege escalation through the com_users group editing webservice endpoint.

8.2 CVSS 4.0 High EPSS 0.53% · top 57.8% CWE-284 · Improper access control
8.2CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
24 Jul 2026Last modified by NVD

Description

An improper access check allows privelege escalation through the com_users group editing webservice endpoint.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://developer.joomla.org/security-centre/1046-20260514-core-privilege-escalation-through-com-users-webservice-endpoi Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-48904), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.