Vulnerability · Published Aug 31, 2026 · Assigned by Joomla
CVE-2026-78079Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10
Medium 5.3
In plain English
A medium-severity open redirect in Helix Ultimate extension for Joomla from joomshaper.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.4%top 65.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| joomshaper.com | Helix Ultimate extension for Joomla | 1.0-2.2.9 |
Weakness: CWE-601 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N