CVE-2026-78075
Received Received - Intake

Broken Object-Level Authorization in Helix Ultimate

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: Joomla! Project

Description
Joomla Extension - joomshaper.com - Broken Object-Level Authorization in Blog Image Deletion in Helix Ultimate < 2.2.10 - `Blog::remove_image()` checked whether the user was authorized to edit the article ID passed in the request, but did not verify whether the specified image path (src) belonged to that article. On Joomla 3 builds where physical file deletion was triggered, an author could supply their own article ID alongside an arbitrary file path under the `/images/` directory to delete arbitrary files.

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Meta Information

Published
2026-08-31
Last Modified
2026-08-31
Generated
2026-08-31
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
CVE-2026-78075
EUVD
EUVD-2026-68529

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
joomshaper helix_ultimate to 2.2.10 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This vulnerability is a Broken Object-Level Authorization issue in the Joomla extension Helix Ultimate versions before 2.2.10. The flaw exists in the Blog::remove_image() function, which failed to verify if an image path belonged to the article being edited. An attacker with author privileges could exploit this by providing their own article ID and an arbitrary file path under /images/ to delete files on the server.

Detection Guidance

Check Joomla extensions for Helix Ultimate versions below 2.2.10. Inspect server logs for unauthorized file deletion attempts in /images/ directory. Look for suspicious requests targeting Blog::remove_image() with mismatched article IDs and file paths.

Impact Analysis

If exploited, this vulnerability could allow an attacker with author-level access to delete arbitrary files on the server, potentially leading to data loss, system instability, or unauthorized modifications. On Joomla 3 systems, physical file deletion is triggered, making the impact more severe.

Compliance Impact

This vulnerability could lead to unauthorized file deletion, potentially violating data integrity and availability requirements under GDPR and HIPAA. If sensitive data is deleted or corrupted, it may result in non-compliance with these regulations, leading to legal and financial penalties.

Mitigation Strategies

Update Helix Ultimate to version 2.2.10 or later immediately. Review and restrict file deletion permissions in Joomla. Monitor /images/ directory for unauthorized file changes. Apply Joomla security patches if available.

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