# CVE-2026-65888: Balbooa Gridbox account takeover via socialLogin method

Source: https://junglewise.ai/threats/cve-2026-65888-balbooa-gridbox-account-takeover-via-sociallogin-method  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-29. Updated: 2026-07-29  
License: CC BY 4.0 with a link back

CVE-2026-65888 · Severity: info · CVSS 10 · Published 2026-07-29

Gridbox, a popular drag-and-drop website builder for the Joomla content management system, contains a critical security flaw in its social login functionality. This vulnerability allows an attacker to bypass security checks and log in as any user on the website, including administrators, without needing a password. An attacker who successfully exploits this can take full control of the website, potentially leading to data theft, site defacement, or the installation of malicious software.

Technologies: [Balbooa Gridbox](https://junglewise.ai/threats/technologies/gridbox). Vendors: [Balbooa](https://junglewise.ai/threats/vendors/balbooa).

## Quick answers

**Is CVE-2026-65888 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-65888 being exploited in the wild.

**How severe is CVE-2026-65888?** Informational severity, with a CVSS score of 10, published 29 July 2026.

**Which products and versions are affected?** Balbooa Gridbox 1.0.0-2.20.1.

**Is there a fix for CVE-2026-65888?** A patch was published on 2026-07-20: Initial partial fix in version 2.20.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-65888 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-65888?** 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

An improper access control vulnerability (CWE-284) exists in the 'socialLogin' method of the Balbooa Gridbox extension for Joomla. The flaw allows a remote, unauthenticated attacker to bypass authentication mechanisms and log in as any existing user on the target site by providing specific parameters to the vulnerable method. This is part of a larger set of 23 vulnerabilities discovered in the component, including remote code execution and SQL injection. The vulnerability is being actively exploited in the wild. Users should update to Gridbox version 2.20.2 or later to remediate this and other critical flaws.

## Affected products

- balbooa.com Gridbox extension for Joomla 1.0.0-2.20.1

## Timeline

- 2026-07-20: patched: Initial partial fix in version 2.20.1
- 2026-07-29: disclosed: Full disclosure of 23 vulnerabilities including CVE-2026-65888
- 2026-07-29: advisory
- 2026-07-29: exploited: Confirmed active exploitation in the wild by Joomla Security Strike Team

## References

- [https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/](https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/)
- [https://www.balbooa.com/gridbox](https://www.balbooa.com/gridbox)

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