CVE-2026-78076Network attack vectorHinoki check available

Unauthorized menu changes via missing permission checks

Published Aug 31, 2026 · Updated Sep 1, 2026

Improper access control in JoomShaper Helix Ultimate before 2.2.10 allows remote authenticated users to alter arbitrary menu layouts. The save-megamenu-settings AJAX endpoint accepts layout parameters for any menu item without checking core.edit on the target item or core.admin. A Joomla account with access to the endpoint is required, and unauthorized changes can alter site navigation or interrupt access to linked content.

CVSS severity5.1
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in JoomShaper Helix Ultimate before 2.2.10 allows remote authenticated users to alter arbitrary menu layouts. The save-megamenu-settings AJAX endpoint accepts layout parameters for any menu item without checking core.edit on the target item or core.admin. A Joomla account with access to the endpoint is required, and unauthorized changes can alter site navigation or interrupt access to linked content.

The record

CVE
CVE-2026-78076
Published
Aug 31, 2026
Updated
Sep 1, 2026
Vendor
JoomShaper
Product
Helix Ultimate
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1.0-2.2.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JoomShaper · Helix Ultimateversion=1.0-2.2.9

Published CVSS scores

5.1Joomla CNACVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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