CVE-2026-25901

Analyzed Analyzed - Analysis Complete

Cross-Site Scripting in Joomla Multilingual Associations Component

Publication date: 2026-05-26

Last updated on: 2026-05-27

Assigner: Joomla! Project

Description

Lack of output escaping leads to a XSS vector in the multilingual associations component.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-26

Last Modified

2026-05-27

Generated

2026-07-06

AI Q&A

2026-05-26

EPSS Evaluated

2026-07-04

NVD

CVE-2026-25901

EUVD

EUVD-2026-31882

Affected Vendors & Products

Vendor	Product	Version / Range
joomla	joomla!	From 3.0.0 (inc) to 5.4.6 (exc)
joomla	joomla!	From 6.0.0 (inc) to 6.1.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product 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.

Attack-Flow Graph

Executive Summary

CVE-2026-25901 is a Cross-Site Scripting (XSS) vulnerability in the Joomla! Content Management System (CMS). It occurs in the multilingual associations component because of a lack of proper output escaping, which allows attackers to inject malicious scripts.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of the affected Joomla! CMS website. This can lead to unauthorized actions such as stealing user credentials, session hijacking, or delivering malware to users. The severity is moderate with a low probability of exploitation.

Detection Guidance

This vulnerability is a Cross-Site Scripting (XSS) issue in the multilingual associations component of Joomla! CMS caused by lack of proper output escaping.

Detection typically involves testing the affected Joomla! versions (4.0.0 to 5.4.5 and 6.0.0 to 6.1.0) for injection of malicious scripts in the multilingual associations component.

No specific detection commands or network/system scanning commands are provided in the available resources.

Mitigation Strategies

The immediate mitigation step is to upgrade Joomla! CMS to a fixed version.

Upgrade to Joomla! version 5.4.6 or later if you are using the 5.x branch.
Upgrade to Joomla! version 6.1.1 or later if you are using the 6.x branch.

These upgrades address the XSS vulnerability by fixing the output escaping in the multilingual associations component.

Compliance Impact

The provided information does not specify how the Cross-Site Scripting (XSS) vulnerability in Joomla!'s multilingual associations component directly affects compliance with common standards and regulations such as GDPR or HIPAA.

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