Stored XSS in Joomla Administrator Summaries

Publication date: 2026-07-22

Last updated on: 2026-07-22

Assigner: Joomla! Project

Description

Stored condition values could also execute HTML/JavaScript in administrator summaries.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-22

Last Modified

2026-07-22

Generated

2026-07-23

AI Q&A

2026-07-23

EPSS Evaluated

N/A

NVD

CVE-2026-63281

Affected Vendors & Products

Currently, no data is known.

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

This vulnerability allows stored condition values to execute HTML or JavaScript code in administrator summaries. This could lead to unauthorized code execution when administrators view affected summaries.

Impact Analysis

An attacker could inject malicious scripts into administrator views, potentially stealing session cookies, performing actions on behalf of administrators, or defacing the site. This compromises the integrity and confidentiality of the system.

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