CVE-2026-85191
Received Received - Intake

Privileged Stored XSS in Tabs & Accordions Joomla Extension

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Joomla! Project

Description
Joomla Extension - regularlabs.com - Privileged stored XSS via rtla-alias option in Tabs & Accordions extension for Joomla < 3.1.0 - Tabs & Accordions rewrites links matching an item alias into calls to its browser API. The affected renderer places the alias inside a quoted JavaScript argument in an HTML onclick attribute without securing both the JavaScript-string and HTML-attribute contexts. A crafted data-rlta-alias value can therefore change the generated handler.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-85191
EUVD
EUVD-2026-77308

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
regularlabs tabs_and_accordions to 3.1.0 (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 a privileged stored Cross-Site Scripting (XSS) vulnerability in the Tabs & Accordions Joomla extension from regularlabs.com. It affects versions before 3.1.0. The flaw occurs because the extension rewrites links into browser API calls without properly securing JavaScript-string and HTML-attribute contexts. A crafted alias value can inject malicious scripts via the rtla-alias option.

Impact Analysis

An attacker could exploit this to execute arbitrary JavaScript in a victim's browser when they view a page with the vulnerable extension. This could lead to session hijacking, defacement, or theft of sensitive data. The impact is high as it allows privileged actions due to stored XSS.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's integrity and confidentiality principles. For HIPAA, it may compromise protected health information integrity. Both standards require safeguards against such exploits to maintain compliance.

Mitigation Strategies

Update the Tabs & Accordions extension for Joomla to version 3.1.0 or later to address the Privileged stored XSS vulnerability.

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