CVE-2026-63265

Received Received - Intake

Privilege Escalation in Regular Labs AJAX Endpoints

Publication date: 2026-07-22

Last updated on: 2026-07-22

Assigner: Joomla! Project

Description

Privileged Regular Labs AJAX endpoints did not consistently require valid CSRF tokens, matching component/item permissions and trusted server-generated form configuration. Authenticated lower-privileged users or CSRF attacks could invoke lookups or mutations outside their authorization.

CVSS Scores

EPSS Scores

Probability:
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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-2026-63265

Affected Vendors & Products

Vendor	Product	Version / Range
joomla	joomla	-

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-352	The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability involves AJAX endpoints in Privileged Regular Labs not consistently requiring valid CSRF tokens. This means authenticated users with lower privileges or attackers exploiting CSRF could perform unauthorized actions like lookups or data changes beyond their allowed permissions.

Impact Analysis

If exploited, this could allow unauthorized data access or modifications by lower-privileged users or via CSRF attacks. This may lead to data breaches, integrity issues, or unauthorized system changes depending on the affected Joomla component.

Compliance Impact

This vulnerability could lead to unauthorized data access or modifications, violating principles of data integrity and confidentiality required by GDPR and HIPAA. Non-compliance risks include legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update Joomla to the latest version to ensure CSRF token validation and permission checks are enforced. Review and restrict user permissions to the minimum required. Enable CSRF protection for all AJAX endpoints and validate form configurations server-side.

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