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 a CWE-79 (Improper Neutralization of Input During Web Page Generation) vulnerability in Joomla! CMS. The issue arises from insufficient validation of input in the MFA management views, enabling cross-site scripting attacks. The vulnerability requires an attacker to have high privileges and some user interaction, and it impacts versions 4.2.0 through 5.4.6 and 6.0.0 through 6.1.1 of Joomla! CMS. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation could allow an attacker with high privileges to execute arbitrary scripts in the context of the affected Joomla! CMS instance's web interface, potentially leading to session hijacking, defacement, or other malicious actions. The vulnerability requires user interaction and does not allow remote unauthenticated exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to MFA management views to trusted administrators only 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 a CWE-79 (Improper Neutralization of Input During Web Page Generation) vulnerability in Joomla! CMS. The issue arises from insufficient validation of input in the MFA management views, enabling cross-site scripting attacks. The vulnerability requires an attacker to have high privileges and some user interaction, and it impacts versions 4.2.0 through 5.4.6 and 6.0.0 through 6.1.1 of Joomla! CMS. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation could allow an attacker with high privileges to execute arbitrary scripts in the context of the affected Joomla! CMS instance's web interface, potentially leading to session hijacking, defacement, or other malicious actions. The vulnerability requires user interaction and does not allow remote unauthenticated exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to MFA management views to trusted administrators only 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: 07/07/2026, 18:44:24 UTC
Last updated: 07/07/2026, 19:13:51 UTC
Views: 2
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