Vulnerability DatabaseCVE-2026-90906
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CVE-2026-90906
Published:September 29, 2026
Updated:October 10, 2026
Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to XSS vulnerabilities in the link method of the HTML Helper.
Affected Packages
https://github.com/joomla/joomla-cms.git (GITHUB):
Affected version(s) >=6.0.0-alpha1 <6.1.4
Fix Suggestion:
Update to version 6.1.4
https://github.com/joomla/joomla-cms.git (GITHUB):
Affected version(s) >=5.0.0-alpha1 <5.4.9
Fix Suggestion:
Update to version 5.4.9
Related Resources (2)
https://developer.joomla.org/security-centre/1081-20260901-core-xss-in-htmlhelper-link-method.html
https://www.joomla.org/
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CVSS v4
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
6.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.22