Joomla! XSS via HTMLHelper::link (1.5.0-5.4.8, 6.0.0-6.1.3)
CVE-2026-90906 Published on September 29, 2026

Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-90906 is exploitable with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
PASSIVE

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-90906 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2026-90906

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Affected Versions

Joomla! Project Joomla! CMS: