Unauthenticated Stored XSS Vulnerability in Helix Ultimate Extension by Joomla
CVE-2026-57829

8.7HIGH

Key Information:

Vendor

Joomshaper.com

Status
Helix Ultimate Extension For Joomla
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-57829?

The Helix Ultimate extension for Joomla contains a vulnerability that allows unauthenticated users to execute malicious scripts on affected installations. This security flaw can result in stored Cross-Site Scripting (XSS) attacks, where an attacker can input harmful code that is stored and executed by the browser of unsuspecting users. Proper security measures should be taken to patch and mitigate this risk to ensure the safety of users and integrity of the web application.

Affected Version(s)

Helix Ultimate extension for Joomla 1.0-2.2.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-57829
Created by Is4yev

References

https://www.joomshaper.com/joomla-templates/helixultimate
product

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Amin Isayev
.