Is CVE-2026-61425 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-61425 being exploited in the wild.

How severe is CVE-2026-61425?

Informational severity, with a CVSS score of 9.4, published 20 July 2026.

Which products and versions are affected?

Balbooa Gridbox 1.0.0-2.20.0.2.

Is there a fix for CVE-2026-61425?

A patch was published on 2026-07-20: Fixed version 2.20.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-61425 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-61425?

Check whether you run Balbooa Gridbox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-61425: Balbooa Gridbox for Joomla authentication bypass in Super User login

CVE-2026-61425 · Severity: info · CVSS 9.4 · Published 2026-07-20

Gridbox, a popular drag-and-drop page builder for the Joomla content management system, contains a critical security flaw that allows unauthorized individuals to gain full administrative control. By simply setting a specific browser cookie, an attacker can bypass the login process and access the site as a 'Super User' without needing a password. This level of access allows an attacker to modify the website, steal data, or potentially take over the entire web server.

Technologies: Balbooa Gridbox. Vendors: Balbooa.

Quick answers

Is CVE-2026-61425 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-61425 being exploited in the wild.
How severe is CVE-2026-61425?: Informational severity, with a CVSS score of 9.4, published 20 July 2026.
Which products and versions are affected?: Balbooa Gridbox 1.0.0-2.20.0.2.
Is there a fix for CVE-2026-61425?: A patch was published on 2026-07-20: Fixed version 2.20.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-61425 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-61425?: Check whether you run Balbooa Gridbox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A critical authentication bypass exists in the Balbooa Gridbox extension for Joomla due to improper validation of user-supplied identity markers. The extension trusts a value provided in a browser cookie as proof of identity without verifying it against a valid session or password. An unauthenticated attacker can exploit this by setting a cookie to a known administrator's username, granting them immediate Super User privileges. Because Joomla Super Users can edit PHP template files through the administrative interface, this vulnerability effectively provides a path to Remote Code Execution (RCE). The issue is fixed in version 2.20.1.

Affected products

Balbooa Gridbox extension for Joomla 1.0.0-2.20.0.2

Timeline

2025-10-21: other: Vulnerable version 2.20.0.2 released
2026-07-17: other: Vulnerability discovered and reported to vendor by mySites.guru
2026-07-20: patched: Fixed version 2.20.1 released
2026-07-20: disclosed: Public disclosure by mySites.guru and CVE assignment

References

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