What is CVE-2026-48898?

CVE-2026-48898 is a critical-severity vulnerability in Joomla Joomla\!, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-05-26.

How severe is CVE-2026-48898?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Joomla Joomla\!

CVE-2026-48898

An improper access check allows privilege escalation through the com_users batch task.

EPSS: 0.000 (0.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Joomla Joomla\!
Joomla! Project Cms — versions 4.0.0-5.4.5, 6.0.0-6.1.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security@joomla.org (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48898?: CVE-2026-48898 is a critical-severity vulnerability in Joomla Joomla\!, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-05-26.
How severe is CVE-2026-48898?: Critical severity. CVSS v3 base score is 9.8 out of 10.