CVE-2026-48949: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Joomla! Project Joomla! CMS
Lack of validation leads to an XSS vulnerability in the MFA management views.
AI Analysis
Technical Summary
CVE-2026-48949 is an XSS vulnerability in Joomla! CMS caused by improper neutralization of input during web page generation in the MFA management views. This allows an attacker with high privileges and partial user interaction to potentially inject malicious scripts. The vulnerability affects versions 4.2.0 to 5.4.6 and 6.0.0 to 6.1.1. No vendor advisory or patch is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an attacker with high privileges and some user interaction to execute arbitrary scripts in the context of the affected Joomla! CMS instance, potentially leading to session hijacking, defacement, or other script-based attacks. The vulnerability is limited to the MFA management views and requires user interaction and elevated privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, administrators should limit access to MFA management views to trusted users and monitor for suspicious activity related to these interfaces.
CVE-2026-48949: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Joomla! Project Joomla! CMS
Description
Lack of validation leads to an XSS vulnerability in the MFA management views.
CVSS v4.0
Score 5.9medium
Affected software
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
CVE-2026-48949 is an XSS vulnerability in Joomla! CMS caused by improper neutralization of input during web page generation in the MFA management views. This allows an attacker with high privileges and partial user interaction to potentially inject malicious scripts. The vulnerability affects versions 4.2.0 to 5.4.6 and 6.0.0 to 6.1.1. No vendor advisory or patch is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an attacker with high privileges and some user interaction to execute arbitrary scripts in the context of the affected Joomla! CMS instance, potentially leading to session hijacking, defacement, or other script-based attacks. The vulnerability is limited to the MFA management views and requires user interaction and elevated privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, administrators should limit access to MFA management views to trusted users and monitor for suspicious activity related to these interfaces.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-05-26T16:47:13.550Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4d456fc9d9e3dbe3a44f14
Added to database: 07/07/2026, 18:29:03 UTC
Last enriched: 07/15/2026, 12:23:49 UTC
Last updated: 08/20/2026, 22:52:13 UTC
Views: 62
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