CVE-2026-48899: CWE-284 Improper Access Control in Joomla! Project Joomla! CMS
An improper access check allows privilege escalation through the com_users batch task.
AI Analysis
Technical Summary
This vulnerability in Joomla! CMS arises from an improper access check in the com_users batch task component, categorized under CWE-284 (Improper Access Control). It enables a user with limited privileges to escalate their privileges within the system. The affected versions include 4.0.0 to 5.4.5 and 6.0.0 to 6.1.0. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no user interaction required, and partial impacts on confidentiality, integrity, and availability. No patch or official remediation level has been provided by the Joomla! Project as of the published date.
Potential Impact
Successful exploitation could allow an attacker with some privileges to escalate their access rights, potentially leading to unauthorized actions within the Joomla! CMS environment. The impact is rated medium severity with partial impacts on confidentiality, integrity, and availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Joomla! Project advisory for current remediation guidance. Until an official fix is released, administrators should monitor for updates from the vendor and consider restricting access to the com_users batch task functionality if possible.
CVE-2026-48899: CWE-284 Improper Access Control in Joomla! Project Joomla! CMS
Description
An improper access check allows privilege escalation through the com_users batch task.
CVSS v4.0
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Joomla! CMS arises from an improper access check in the com_users batch task component, categorized under CWE-284 (Improper Access Control). It enables a user with limited privileges to escalate their privileges within the system. The affected versions include 4.0.0 to 5.4.5 and 6.0.0 to 6.1.0. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no user interaction required, and partial impacts on confidentiality, integrity, and availability. No patch or official remediation level has been provided by the Joomla! Project as of the published date.
Potential Impact
Successful exploitation could allow an attacker with some privileges to escalate their access rights, potentially leading to unauthorized actions within the Joomla! CMS environment. The impact is rated medium severity with partial impacts on confidentiality, integrity, and availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Joomla! Project advisory for current remediation guidance. Until an official fix is released, administrators should monitor for updates from the vendor and consider restricting access to the com_users batch task functionality if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-05-26T10:06:17.656Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a15d231891d628fdc604ce8
Added to database: 5/26/2026, 5:02:41 PM
Last enriched: 5/26/2026, 5:19:22 PM
Last updated: 5/26/2026, 11:06:58 PM
Views: 4
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