CVE-2026-61425Network attack vector

Unauthenticated administrator takeover via trusted browser cookie

Published Jul 20, 2026 · Updated Jul 20, 2026

Authentication bypass in Balbooa Gridbox 1.0.0 through 2.20.0.2 allows remote attackers to take over administrator accounts. Gridbox treats a browser-supplied cookie value as a verified username and creates an authenticated Joomla session without validating a password or signed credential. A single anonymous request can select any account, including a Super User whose template-editing privileges enable PHP execution and full site compromise.

CVSS severity9.4
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Balbooa Gridbox 1.0.0 through 2.20.0.2 allows remote attackers to take over administrator accounts. Gridbox treats a browser-supplied cookie value as a verified username and creates an authenticated Joomla session without validating a password or signed credential. A single anonymous request can select any account, including a Super User whose template-editing privileges enable PHP execution and full site compromise.

The record

CVE
CVE-2026-61425
Published
Jul 20, 2026
Updated
Jul 20, 2026
Vendor
Balbooa
Product
Gridbox
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 20, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0-2.20.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Balbooa · Gridboxversion=1.0.0-2.20.0.2

Published CVSS scores

9.4Joomla! ProjectCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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