CVE-2026-73371: CWE-284 Improper Access Control in Joomla! Project Joomla! CMS
CVE-2026-73371 is an improper access control vulnerability in Joomla! CMS affecting versions 4.0.0 through 5.4.6 and 6.0.0 through 6.1.2. It allows unauthorized users with high privileges to perform batch copy operations on items they should not be able to edit. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.1.
AI Analysis
Technical Summary
This vulnerability in Joomla! CMS arises from improper ACL (Access Control List) checks for batch copy actions. Specifically, in versions 4.0.0 to 5.4.6 and 6.0.0 to 6.1.2, users with high privileges but without explicit edit permissions can perform batch copy operations on items that are otherwise uneditable. The flaw is categorized under CWE-284 (Improper Access Control). No known exploits are reported in the wild, and no official patch or remediation details are provided in the input data.
Potential Impact
Unauthorized users with high privileges can bypass intended access controls to perform batch copy operations on uneditable items. This could lead to unauthorized duplication of content or data within the Joomla! CMS environment. The impact is limited to the ability to copy items without proper permissions, with no indication of further privilege escalation or remote code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or fix information is provided, administrators should monitor Joomla! Project advisories for updates. Until a fix is available, restrict high-privilege user roles to trusted personnel to minimize risk.
CVE-2026-73371: CWE-284 Improper Access Control in Joomla! Project Joomla! CMS
Description
CVE-2026-73371 is an improper access control vulnerability in Joomla! CMS affecting versions 4.0.0 through 5.4.6 and 6.0.0 through 6.1.2. It allows unauthorized users with high privileges to perform batch copy operations on items they should not be able to edit. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.1.
CVSS v4.0
Score 5.1medium
Affected software
Joomla! Project
Joomla! CMS
pkg:composer/joomla/joomla-cmsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Joomla! CMS arises from improper ACL (Access Control List) checks for batch copy actions. Specifically, in versions 4.0.0 to 5.4.6 and 6.0.0 to 6.1.2, users with high privileges but without explicit edit permissions can perform batch copy operations on items that are otherwise uneditable. The flaw is categorized under CWE-284 (Improper Access Control). No known exploits are reported in the wild, and no official patch or remediation details are provided in the input data.
Potential Impact
Unauthorized users with high privileges can bypass intended access controls to perform batch copy operations on uneditable items. This could lead to unauthorized duplication of content or data within the Joomla! CMS environment. The impact is limited to the ability to copy items without proper permissions, with no indication of further privilege escalation or remote code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or fix information is provided, administrators should monitor Joomla! Project advisories for updates. Until a fix is available, restrict high-privilege user roles to trusted personnel to minimize risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-12T14:00:09.041Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8482f1c6e8be03326f9aaf
Added to database: 08/18/2026, 16:06:09 UTC
Last enriched: 09/11/2026, 21:32:58 UTC
Last updated: 10/02/2026, 06:30:59 UTC
Views: 63
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