Critical severity · published May 26, 2026
CVE-2026-48898
Joomla! Core - [20260513] - Privilege escalation through com_users batch task
9.8
CVSS
0.3%
EPSS
No
On KEV
Description
An improper access check allows privilege escalation through the com_users batch task.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Joomla · Joomla
4.0.0-5.4.5; 6.0.0-6.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48898
Vendor Advisory
https://developer.joomla.org/security-centre/1045-20260513-core-privilege-escalation-through-com-users-batch-task.html
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