CVE-2025-63082
Unknown Unknown - Not Provided
Cross-Site Scripting in Joomla HTML Filter via img Data URLs

Publication date: 2026-01-06

Last updated on: 2026-01-06

Assigner: Joomla! Project

Description
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
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Meta Information
Published
2026-01-06
Last Modified
2026-01-06
Generated
2026-06-16
AI Q&A
2026-01-06
EPSS Evaluated
2026-06-15
NVD
CVE-2025-63082
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
joomla joomla_cms From 4.0.0 (inc) to 5.4.1 (inc)
joomla joomla_cms From 6.0.0 (inc) to 6.0.1 (inc)
joomla joomla_cms 5.4.2
joomla joomla_cms 6.0.2
Helpful Resources
Exploitability
CWE
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KEV
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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.
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Executive Summary

CVE-2025-63082 is a cross-site scripting (XSS) vulnerability in Joomla! CMS caused by inadequate input filtering in the HTML filter code, specifically related to data URLs within img tags. This flaw allows attackers to inject malicious scripts via these data URLs, potentially leading to XSS attacks. [1]

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of the affected Joomla! website, potentially leading to unauthorized actions, data theft, session hijacking, or defacement of the site. It poses a moderate security risk and can compromise the integrity and security of the website and its users. [1]

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your Joomla! CMS to version 5.4.2 or 6.0.2, as these versions contain the fix for the inadequate input filtering issue that leads to the XSS vulnerability. [1]

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