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CVE-2026-90906

8.3, high

Joomla! Project Joomla! CMS Cross-Site Scripting Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.3, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 11.1% of scored CVEs
Exploitation
No public evidence
Published
29 Sept 202618 days ago

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.

Details

Vendor
Joomla! Project
Product
Joomla! CMS
Weakness
CWE-79 (opens in a new tab)
Status
Analyzed
Updated
6 Oct 2026
Assigner
security@joomla.org

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

References 2

Patches and fixes 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Joomla! Project CVEs

Every Joomla! Project CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-92222 Joomla! Project Joomla! CMS Server-Side Request Forgery Vulnerability EPSS 0.2% 8, high
  • CVE-2026-92227 Joomla! Project Joomla! CMS Improper Authentication Vulnerability EPSS 0.3% 7.5, high

Beyond this page

Is CVE-2026-90906 in your network?

This page tells you how dangerous CVE-2026-90906 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-90906 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.