CVE-2026-90906
High
Description
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.
SeverityHigh
CVSS8.3
Exploit probability—
Product
Joomla\!
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- joomla joomla\!5.4.8, 6.1.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| joomla joomla\! | 1.5.0 ≤ v < 5.4.8, 6.0.0 ≤ v < 6.1.3 | 5.4.8, 6.1.3 |
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