by Kastro
Paper/Archive/CVE-2026-48904

CVE-2026-48904

Joomla! Project Joomla! CMS — Joomla! Core - [20260514] - Privilege escalation through com_users webservice endpoints

EPSS 5%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 91.6.916 × 2018.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
Joomla! CMS4.0.0-5.4.5–CNA
Joomla! CMS6.0.0-6.1.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Joomla (CNA)8.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorydeveloper.joomla.org/security-centre/1046-20260514-core-privilege-escalation-through-com-users-webservice-endpoints.html