CVE-2026-48942
Received Received - Intake
Stored XSS in K2 Component for Joomla

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: Joomla! Project

Description
K2 ≤ 2.26 renders the `#__k2_users.image` column directly into HTML `src` attributes via two distinct templates, in both cases without HTML escaping.
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Meta Information
Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-06-25
AI Q&A
2026-06-25
EPSS Evaluated
N/A
NVD
CVE-2026-48942
EUVD
EUVD-2026-39439
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
joomla k2 to 2.26 (exc)
joomla k2 to 2.26 (inc)
Helpful Resources
Exploitability
CWE
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KEV
KEV Icon
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

The vulnerability in K2 versions up to 2.26 involves the `#__k2_users.image` column being rendered directly into HTML `src` attributes through two different templates without applying HTML escaping.

This means that user-supplied data in the image column can be injected into the HTML source attribute as-is, potentially allowing malicious content to be executed or displayed.

Impact Analysis

Because the image data is rendered without HTML escaping, an attacker could inject malicious code or content into the image source attribute.

This could lead to security issues such as cross-site scripting (XSS), which may allow attackers to execute scripts in the context of the affected website, potentially compromising user data or site integrity.

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