CVE-2026-78302
Deferred Deferred - Pending Action

Unauthenticated Stored XSS in SP Property Joomla Extension

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: Joomla! Project

Description
Joomla Extension - joomshaper.com - Unauthenticated Stored Cross-Site Scripting (XSS) via Unescaped Output in Views and Admin Lists in SP Property < 4.1.4 - Multiple template files across frontend views and administrator list tables rendered attributes and text values directly into HTML without contextual escaping.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-30
AI Q&A
2026-09-10
EPSS Evaluated
2026-09-29
NVD
CVE-2026-78302
EUVD
EUVD-2026-75390

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
joomshaper sp_property to 4.1.4 (exc)

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

This is an Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability in the SP Property Joomla extension by joomshaper.com. It affects versions before 4.1.4. The flaw allows attackers to inject malicious scripts via unescaped output in frontend views and admin list tables. These scripts are stored on the server and executed when other users view the affected pages.

Detection Guidance

To detect this vulnerability, inspect Joomla installations for the SP Property extension version 4.1.4 or lower. Check template files in frontend views and administrator list tables for unescaped output in HTML attributes or text values. Manually review files like those in com_spproperty or similar directories for direct variable output without htmlspecialchars or similar escaping functions.

Impact Analysis

An attacker could steal user sessions, deface websites, redirect users to malicious sites, or perform actions on behalf of users. Since it is stored, the impact persists until the vulnerability is patched or the malicious content is manually removed.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality principles. For HIPAA, it may expose protected health information to unauthorized parties, risking compliance with security requirements.

Mitigation Strategies

Immediately update the SP Property extension to version 4.1.4 or higher. If an update is unavailable, remove or disable the extension until a patch is released. Review and sanitize all user-supplied input and output in templates to ensure proper escaping. Monitor Joomla security advisories for further updates.

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